Which of the following is a scalar quantity?
(a) Force
(b) Acceleration
(c) Distance
(d) Velocity
Answer: (c) Distance
The rate of change of momentum is equal to:
(a) Force
(b) Velocity
(c) Displacement
(d) Mass
Answer: (a) Force
The SI unit of force is:
(a) Newton
(b) Watt
(c) Joule
(d) Pascal
Answer: (a) Newton
Which of the following statements is true according to Newton’s first law of motion?
(a) An object at rest remains at rest unless acted upon by a net force.
(b) The acceleration of an object is directly proportional to the net force acting on it.
(c) For every action, there is an equal and opposite reaction.
(d) The force acting on an object is equal to its mass times acceleration.
Answer: (a) An object at rest remains at rest unless acted upon by a net force.
The weight of an object is:
(a) The force exerted by the object on a supporting surface.
(b) The force exerted by the object on any other object.
(c) The force exerted by Earth on the object.
(d) The force exerted by the object on Earth.
Answer: (c) The force exerted by Earth on the object.
When an object is in equilibrium, the sum of the forces acting on it is:
(a) Zero
(b) Positive
(c) Negative
(d) Indeterminate
Answer: (a) Zero
The force of friction always acts:
(a) In the direction of motion
(b) Opposite to the direction of motion
(c) Perpendicular to the direction of motion
(d) At an angle of 45 degrees to the direction of motion
Answer: (b) Opposite to the direction of motion
Which of the following is an example of uniform circular motion?
(a) A ball rolling down a hill
(b) A car accelerating on a straight road
(c) A pendulum swinging back and forth
(d) A satellite orbiting around the Earth
Answer: (d) A satellite orbiting around the Earth
The centripetal force acting on an object moving in a circle is directed:
(a) Tangential to the circle
(b) Away from the center of the circle
(c) Towards the center of the circle
(d) Parallel to the radius of the circle
Answer: (c) Towards the center of the circle
In an elastic collision, which of the following quantities is conserved?
(a) Momentum only
(b) Kinetic energy only
(c) Both momentum and kinetic energy
(d) Neither momentum nor kinetic energy
Answer: (c) Both momentum and kinetic energy
The work done on an object is defined as the product of:
(a) Force and time
(b) Force and displacement
(c) Velocity and displacement
(d) Mass and acceleration
Answer: (b) Force and displacement
The SI unit of work is the:
(a) Watt
(b) Joule
(c) Newton
(d) Pascal
Answer: (b) Joule
Power is defined as the:
(a) Work done per unit time
(b) Force exerted per unit area
(c) Change in velocity per unit time
(d) Mass multiplied by acceleration
Answer: (a) Work done per unit time
The efficiency of a machine is defined as:
(a) Output work divided by input work
(b) Output force divided by input force
(c) Output power divided by input power
(d) Output energy divided by input energy
Answer: (a) Output work divided by input work
Which of the following statements is true for an object in uniform circular motion?
(a) The speed of the object remains constant.
(b) The acceleration of the object is zero.
(c) The net force acting on the object is zero.
(d) The object always moves along a straight line.
Answer: (c) The net force acting on the object is zero.
The distance traveled by an object in a given time interval is equal to the:
(a) Acceleration of the object
(b) Displacement of the object
(c) Velocity of the object
(d) Speed of the object
Answer: (d) Speed of the object
A car accelerates from rest to 30 m/s in 10 seconds. The average acceleration of the car is:
(a) 3 m/s²
(b) 30 m/s²
(c) 300 m/s²
(d) 3000 m/s²
Answer: (a) 3 m/s²
Which of the following quantities has both magnitude and direction?
(a) Speed
(b) Distance
(c) Displacement
(d) Velocity
Answer: (d) Velocity
The slope of a distance-time graph gives the:
(a) Speed of an object
(b) Displacement of an object
(c) Acceleration of an object
(d) Velocity of an object
Answer: (a) Speed of an object
The acceleration due to gravity on Earth is approximately:
(a) 9.8 m/s
(b) 9.8 m/s²
(c) 9.8 m/s³
(d) 9.8 m/s⁴
Answer: (b) 9.8 m/s²
Which of the following equations represents Newton’s second law of motion?
(a) F = ma
(b) F = mv
(c) F = md
(d) F = ms
Answer: (a) F = ma
When a ball is thrown vertically upwards, its velocity at the highest point is:
(a) Zero
(b) Equal to the initial velocity
(c) Equal to the final velocity
(d) Cannot be determined without more information
Answer: (a) Zero
The acceleration due to gravity is negative when:
(a) An object is falling freely
(b) An object is thrown upwards
(c) An object is at rest on a surface
(d) An object is in uniform circular motion
Answer: (b) An object is thrown upwards
An object is dropped from a certain height. Ignoring air resistance, the time taken to reach the ground depends on the:
(a) Mass of the object
(b) Size of the object
(c) Shape of the object
(d) None of the above
Answer: (d) None of the above
Which of the following statements is true regarding projectile motion?
(a) The horizontal component of velocity is constant.
(b) The vertical component of velocity is constant.
(c) The acceleration is constant in both directions.
(d) The time of flight is independent of the initial velocity.
Answer: (a) The horizontal component of velocity is constant.
The maximum range of a projectile is achieved at an angle of:
(a) 0 degrees
(b) 30 degrees
(c) 45 degrees
(d) 90 degrees
Answer: (c) 45 degrees
A force of 10 N is applied to an object of mass 2 kg. What is the acceleration of the object?
(a) 2 m/s
(b) 5 m/s
(c) 10 m/s
(d) 20 m/s
Answer: (d) 20 m/s
A 2 kg object moving at 5 m/s collides with another object at rest and sticks to it. What is their final velocity?
(a) 1.25 m/s
(b) 2.5 m/s
(c) 5 m/s
(d) 10 m/s
Answer: (b) 2.5 m/s
A box is pushed horizontally with a force of 20 N against a frictional force of 15 N. What is the net force on the box?
(a) 5 N
(b) 15 N
(c) 20 N
(d) 35 N
Answer: (a) 5 N
A person weighing 600 N is standing on a scale in an elevator. If the elevator accelerates upwards with an acceleration of 2 m/s², what is the reading on the scale?
(a) 400 N
(b) 600 N
(c) 800 N
(d) 1000 N
Answer: (c) 800 N
A car traveling at a constant speed around a circular track is experiencing:
(a) Zero acceleration
(b) Negative acceleration
(c) Positive acceleration
(d) Variable acceleration
Answer: (a) Zero acceleration
A person jumps off a diving board. As the person falls freely, neglecting air resistance, the person’s:
(a) Velocity increases
(b) Velocity decreases
(c) Velocity remains constant
(d) Cannot be determined without more information
Answer: (c) Velocity remains constant
An object is thrown vertically upwards. At the highest point of its trajectory, the acceleration of the object is:
(a) Zero
(b) Positive
(c) Negative
(d) Cannot be determined without more information
Answer: (c) Negative
The work done by a force on an object is maximum when the angle between the force and displacement is:
(a) 0 degrees
(b) 45 degrees
(c) 90 degrees
(d) 180 degrees
Answer: (a) 0 degrees
A car is traveling along a straight road. Suddenly, the driver slams on the brakes, and the car comes to a stop. Which of the following statements is true?
(a) The car experiences zero acceleration during braking.
(b) The car experiences positive acceleration during braking.
(c) The car experiences negative acceleration during braking.
(d) The car experiences variable acceleration during braking.
Answer: (c) The car experiences negative acceleration during braking.
Two forces act on an object in the same direction. If one force has a magnitude of 5 N and the other has a magnitude of 3 N, what is the net force on the object?
(a) 2 N
(b) 3 N
(c) 5 N
(d) 8 N
Answer: (d) 8 N
A rocket is launched vertically upwards. After the rocket engines are shut off, the rocket continues to move upwards due to:
(a) Gravitational force
(b) Centripetal force
(c) Centrifugal force
(d) Inertia
Answer: (d) Inertia
An object is in equilibrium when:
(a) It is at rest
(b) It is moving with constant velocity
(c) The net force acting on it is zero
(d) All of the above
Answer: (d) All of the above
A car traveling at 20 m/s comes to a stop within a distance of 40 meters. What is the car’s deceleration?
(a) 0.5 m/s²
(b) 1 m/s²
(c) 2 m/s²
(d) 4 m/s²
Answer: (c) 2 m/s²
Which of the following is an example of a non-contact force?
(a) Frictional force
(b) Gravitational force
(c) Normal force
(d) Tension force
Answer: (b) Gravitational force
An object is thrown horizontally with a velocity of 10 m/s from the top of a building. Neglecting air resistance, the time taken for the object to reach the ground depends on the:
(a) Initial velocity of the object
(b) Mass of the object
(c) Height of the building
(d) None of the above
Answer: (d) None of the above
Which of the following quantities is a vector?
(a) Mass
(b) Temperature
(c) Speed
(d) Displacement
Answer: (d) Displacement
A car is traveling around a circular track at a constant speed. The net force acting on the car is:
(a) Zero
(b) Positive
(c) Negative
(d) Variable
Answer: (a) Zero
A ball is thrown vertically upwards. When it reaches the highest point of its trajectory, its acceleration is:
(a) Zero
(b) Positive
(c) Negative
(d) Cannot be determined without more information
Answer: (c) Negative
The magnitude of the gravitational force between two objects depends on:
(a) The masses of the objects
(b) The distance between the objects
(c) The gravitational constant
(d) All of the above
Answer: (d) All of the above
An object is in free fall. The acceleration of the object is:
(a) Positive
(b) Negative
(c) Zero
(d) Variable
Answer: (a) Positive
A car is traveling at a constant speed around a curved road. Which of the following statements is true regarding the car’s motion?
(a) The car experiences a net force directed towards the center of the curve.
(b) The car experiences a net force directed away from the center of the curve.
(c) The car experiences a net force directed tangential to the curve.
(d) The car experiences a net force of zero.
Answer: (a) The car experiences a net force directed towards the center of the curve.
The momentum of an object is defined as the product of its:
(a) Force and time
(b) Mass and velocity
(c) Acceleration and time
(d) Energy and displacement
Answer: (b) Mass and velocity
An object is pushed with a force of 10 N and accelerates at a rate of 2 m/s². What is the mass of the object?
(a) 2 kg
(b) 5 kg
(c) 10 kg
(d) 20 kg
Answer: (d) 20 kg
A 1000 kg car is traveling at 20 m/s. What is the car’s kinetic energy?
(a) 20 J
(b) 200 J
(c) 2000 J
(d) 20,000 J
Answer: (c) 2000 J
A 20 kg crate is pulled horizontally across a rough surface with a force of 50 N. If the coefficient of friction is 0.4, what is the frictional force acting on the crate?
(a) 20 N
(b) 30 N
(c) 40 N
(d) 50 N
Answer: (c) 40 N
A force of 100 N is applied to an object of mass 10 kg. What is the acceleration of the object?
(a) 10 m/s²
(b) 50 m/s²
(c) 100 m/s²
(d) 1000 m/s²
Answer: (a) 10 m/s²
Which of the following statements is true regarding an object in projectile motion?
(a) The horizontal component of velocity is constant.
(b) The vertical component of velocity is constant.
(c) The acceleration is constant in both directions.
(d) The time of flight is independent of the initial velocity.
Answer: (a) The horizontal component of velocity is constant.
An object is thrown vertically upwards with a velocity of 20 m/s. What is the maximum height reached by the object? (Neglect air resistance and assume g = 10 m/s²)
(a) 20 m
(b) 40 m
(c) 80 m
(d) 100 m
Answer: (c) 80 m
A 500 N force is applied to an object, causing it to accelerate at a rate of 5 m/s². What is the mass of the object?
(a) 50 kg
(b) 100 kg
(c) 250 kg
(d) 1000 kg
Answer: (a) 50 kg
A 1000 kg car accelerates from rest to 20 m/s in 10 seconds. What is the average acceleration of the car?
(a) 1 m/s²
(b) 2 m/s²
(c) 5 m/s²
(d) 10 m/s²
Answer: (b) 2 m/s²
Which of the following quantities is a scalar?
(a) Velocity
(b) Acceleration
(c) Displacement
(d) Speed
Answer: (d) Speed
A car is traveling at a constant speed of 30 m/s. What is its acceleration?
(a) 0 m/s²
(b) 15 m/s²
(c) 30 m/s²
(d) Cannot be determined without more information
Answer: (a) 0 m/s²
Which of the following statements is true according to Newton’s third law of motion?
(a) An object at rest remains at rest unless acted upon by a net force.
(b) The acceleration of an object is directly proportional to the net force acting on it.
(c) For every action, there is an equal and opposite reaction.
(d) The force acting on an object is equal to its mass times acceleration.
Answer: (c) For every action, there is an equal and opposite reaction.
The principle of conservation of momentum states that:
(a) Momentum is always conserved in collisions.
(b) Kinetic energy is always conserved in collisions.
(c) Both momentum and kinetic energy are conserved in collisions.
(d) Neither momentum nor kinetic energy are conserved in collisions.
Answer: (a) Momentum is always conserved in collisions.
A car is traveling at 60 km/h. What is its speed in m/s?
(a) 10 m/s
(b) 20 m/s
(c) 30 m/s
(d) 40 m/s
Answer: (c) 30 m/s
An object is in free fall near the surface of Earth. Its acceleration due to gravity is approximately:
(a) 5 m/s²
(b) 9.8 m/s²
(c) 10 m/s²
(d) 15 m/s²
Answer: (b) 9.8 m/s²
The work done on an object is zero if:
(a) The object is at rest
(b) The object moves with a constant velocity
(c) The object moves in a circular path
(d) The object moves against a frictional force
Answer: (b) The object moves with a constant velocity
Power is the rate at which work is done or the rate at which:
(a) Energy is transferred
(b) Force is applied
(c) Distance is covered
(d) Time passes
Answer: (a) Energy is transferred
The efficiency of a machine is always:
(a) Less than 100%
(b) Greater than 100%
(c) Equal to 100%
(d) Variable and depends on the machine
Answer: (a) Less than 100%
The slope of a velocity-time graph gives the:
(a) Speed of an object
(b) Displacement of an object
(c) Acceleration of an object
(d) Force acting on an object
Answer: (c) Acceleration of an object
A car traveling at a constant velocity is experiencing:
(a) Zero acceleration
(b) Negative acceleration
(c) Positive acceleration
(d) Variable acceleration
Answer: (a) Zero acceleration
The principle of action and reaction is stated in:
(a) Newton’s first law of motion
(b) Newton’s second law of motion
(c) Newton’s third law of motion
(d) Newton’s law of universal gravitation
Answer: (c) Newton’s third law of motion
A ball is thrown horizontally from a height of 10 meters above the ground. Neglecting air resistance, the time it takes for the ball to reach the ground depends on the:
(a) Initial horizontal velocity of the ball
(b) Mass of the ball
(c) Shape of the ball
(d) None of the above
Answer: (d) None of the above
Which of the following quantities is a vector?
(a) Work
(b) Power
(c) Energy
(d) Displacement
Answer: (d) Displacement
