Motion and Forces Learning Quizzes: Master the Fundamentals of Physics

Question 1

A car accelerates uniformly from rest to a speed of 60 mph in 10 seconds. What is its average acceleration?

Accepted Answer

10 mph/s

Answer

6 mph/s

Answer

15 mph/s

Answer

20 mph/s

Question 2

When multiple forces act on an object in different directions, the overall force acting on the object is:

Accepted Answer

The sum of the forces

Answer

The difference between the forces

Answer

Zero

Answer

The average of the forces

Question 3

Which of the following forces requires physical contact between objects?

Accepted Answer

Friction

Answer

Gravity

Answer

Air resistance

Answer

Magnetic force

Question 4

Which of the following factors does NOT affect the magnitude of friction?

Accepted Answer

Velocity

Answer

Surface roughness

Answer

Normal force

Answer

Coefficient of friction

Question 5

A person applies a force of 100 N on a rope attached to a stationary box. If the force of friction acting on the box is 50 N, what is the net force acting on the box?

Accepted Answer

50 N

Answer

0 N

Answer

100 N

Answer

150 N

Question 6

Which statement correctly describes an object moving with constant velocity?

Accepted Answer

It has zero acceleration and zero net force.

Answer

It has zero acceleration and non-zero net force.

Answer

It has non-zero acceleration and zero net force.

Answer

It has non-zero acceleration and non-zero net force.

Question 7

When a car drives down a hill at a constant acceleration, which of the following forces is NOT acting on the car?

Accepted Answer

Force provided by the car engine

Answer

Force of gravity

Answer

Force of friction

Answer

Force of air resistance

Question 8

The acceleration of an object is directly proportional to what two factors?

Accepted Answer

Force applied and the object's mass

Answer

Force applied and the object's volume

Answer

Object's mass and its velocity

Question 9

What does the velocity of a moving object describe?

Accepted Answer

Speed and direction

Answer

Speed only

Answer

Direction only

Question 10

Approximately what is the acceleration due to gravity on Earth?

Accepted Answer

9.8 m/s²

Answer

4.9 m/s²

Answer

19.6 m/s²

Question 11

A car traveling at a constant speed of 60 mph has what kind of acceleration?

Accepted Answer

Zero acceleration

Answer

Constant positive acceleration

Answer

Constant negative acceleration

Question 12

Which of the following forces acts at a distance?

Accepted Answer

Gravitational force

Answer

Friction

Answer

Tension

Question 13

What is the formula for calculating the work done by a force on an object?

Accepted Answer

Force × distance

Answer

Force / distance

Answer

Distance / force

Question 14

What is the unit of measurement for power of an engine?

Accepted Answer

Watts

Answer

Newtons

Answer

Joules

Question 15

Which of the following is an example of a centripetal force?

Accepted Answer

Tension in a string

Answer

Friction

Answer

Gravitational force

Question 16

An object with a mass of 10 kg moves at a velocity of 2 m/s. Calculate its momentum.

Accepted Answer

10 kg m/s

Answer

5 kg m/s

Answer

15 kg m/s

Answer

20 kg m/s

Question 17

Which of Newton's laws of motion describes the relationship between force, mass, and acceleration?

Accepted Answer

Second law

Answer

First law

Answer

Third law

Answer

Law of universal gravitation

Question 18

A car travels at a constant velocity of 60 km/h. What is its acceleration?

Accepted Answer

0 m/s²

Answer

10 m/s²

Answer

20 m/s²

Answer

30 m/s²

Question 19

Identify the option that does not represent a force.

Accepted Answer

Velocity

Answer

Gravity

Answer

Friction

Answer

Weight

Question 20

Classify the following: Speed

Accepted Answer

Scalar quantity

Answer

Vector quantity

Answer

Both scalar and vector

Answer

Neither scalar nor vector

Question 21

Identify the fundamental force that is NOT a part of nature's fundamental forces.

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electromagnetic force

Answer

Weak nuclear force

Question 22

State whether the following statement is true or false: According to Newton's first law of motion, an object at rest will remain at rest unless an unbalanced force acts upon it.

Accepted Answer

True

Answer

False

Question 23

In the SI system, what unit is used to measure force?

Accepted Answer

Newton

Answer

Joule

Answer

Pascal

Answer

Watt

Question 24

Which of the following is classified as a vector quantity?

Accepted Answer

Force

Answer

Mass

Answer

Speed

Answer

Temperature

Question 25

Which of the following is an example of a centripetal force?

Accepted Answer

Tension in a rope connecting a ball to a rotating bucket

Answer

Gravitational force between the Earth and the Moon

Answer

Frictional force between a car and the road

Answer

Magnetic force between two magnets

Question 26

Which of the following is the SI unit of force?

Accepted Answer

Newton (N)

Answer

Kilogram (kg)

Answer

Meter (m)

Answer

Joule (J)

Question 27

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Accepted Answer

True

Answer

False

Question 28

Which type of force acts on an object in the direction opposite to its motion, tending to impede its motion?

Accepted Answer

Kinetic friction

Answer

Static friction

Answer

Tension

Answer

Gravity

Question 29

Which of the following is a scalar quantity?

Accepted Answer

Mass

Answer

Displacement

Answer

Velocity

Answer

Acceleration

Question 30

The principle of conservation of momentum states that the total momentum of a closed system remains constant in both magnitude and direction.

Accepted Answer

True

Answer

False

Question 31

Which of the following factors does NOT affect the oscillation period of a simple pendulum?

Accepted Answer

Amplitude of the swing

Answer

Length of the pendulum

Answer

Mass of the pendulum

Answer

Local acceleration due to gravity

Question 32

Which of the following is **not** a unit of force?

Accepted Answer

Kilogram

Answer

Newton

Answer

Pound

Answer

Pascal

Question 33

Which of the following is the formula for centripetal force?

Accepted Answer

F = mv²/r

Answer

F = ma

Answer

F = mg

Answer

F = kx

Question 34

A ball is thrown vertically upward. What is the acceleration of the ball at its highest point?

Accepted Answer

0 m/s²

Answer

9.8 m/s² upward

Answer

9.8 m/s² downward

Answer

19.6 m/s² upward

Question 35

Which of the following is the correct free body diagram for an object in equilibrium?

Accepted Answer

An object with two forces acting on it in opposite directions.

Answer

An object with no forces acting on it.

Answer

An object with three forces acting on it in different directions.

Answer

An object with four forces acting on it in different directions.

Question 36

A car is moving at a velocity of 20 m/s. It applies brakes and comes to a stop in 5 seconds. What is the acceleration of the car?

Accepted Answer

-4 m/s²

Answer

-2 m/s²

Answer

2 m/s²

Answer

4 m/s²

Question 37

Which of the following is Newton's third law of motion?

Accepted Answer

To every action, there is an equal and opposite reaction.

Answer

The acceleration of an object is directly proportional to the net force acting on it.

Answer

An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Answer

The force of gravity is directly proportional to the mass of an object.

Question 38

An object is moving with a constant velocity. What is the net force acting on the object?

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Cannot be determined

Question 39

Which of the following is NOT one of Newton's laws of motion?

Accepted Answer

The momentum of an isolated system remains constant.

Answer

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Answer

For every action, there is an equal and opposite reaction.

Answer

An object at rest will remain at rest unless acted on by an unbalanced force.

Question 40

A ball is thrown vertically upward. At the highest point of its trajectory, which of the following forces is acting on the ball?

Accepted Answer

Gravity only

Answer

Air resistance only

Answer

Gravity and air resistance

Answer

Neither gravity nor air resistance

Question 41

Which of the following is NOT a fundamental force of nature?

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electromagnetic force

Answer

Nuclear force

Question 42

A satellite is orbiting Earth in a circular path. What is the direction of the net force acting on the satellite?

Accepted Answer

Toward the center of Earth

Answer

Away from the center of Earth

Answer

Tangent to the orbit

Answer

Zero

Question 43

A rocket is launched vertically upward. What is the purpose of fins on the rocket?

Accepted Answer

To provide stability and control

Answer

To reduce air resistance

Answer

To increase thrust

Answer

To store fuel

Question 44

A car is traveling on a curved road. What is the direction of the centripetal force acting on the car?

Accepted Answer

Toward the center of the curve

Answer

Away from the center of the curve

Answer

Tangent to the road

Answer

Vertical

Question 45

Which of the following is NOT a fundamental type of force in physics?

Accepted Answer

Energy

Answer

Magnetic force

Answer

Friction

Answer

Gravitational force

Question 46

The SI unit of force is the:

Accepted Answer

Newton

Answer

Meter

Answer

Kilogram

Answer

Joule

Question 47

A car is traveling at a constant speed of 60 km/h. What is the car's acceleration?

Accepted Answer

0 m/s²

Answer

60 m/s²

Answer

30 m/s²

Question 48

Which of the following is a characteristic of a vector quantity?

Accepted Answer

It has both magnitude and direction.

Answer

It has only direction.

Answer

It is independent of the frame of reference.

Answer

It has only magnitude.

Question 49

A force of 100.0 N is applied to an object at an angle of 30 degrees to the horizontal. What is the horizontal component of the force?

Accepted Answer

86.6 N

Answer

173.2 N

Answer

50.0 N

Answer

100.0 N

Question 50

A car is traveling at a constant velocity. Which of the following forces is NOT acting on the car?

Accepted Answer

None of the above

Answer

Gravity

Answer

Friction

Answer

Air resistance

Question 51

A car is accelerating from rest. What can you say about the net force acting on the car?

Accepted Answer

The net force is in the same direction as the car's acceleration.

Answer

The net force is zero.

Answer

The net force is in the opposite direction of the car's acceleration.

Question 52

A block is sliding down an inclined plane. Which of the following forces is doing positive work on the block?

Accepted Answer

Gravity

Answer

Friction

Answer

Normal force

Question 53

Which of the following is a scalar quantity?

Accepted Answer

Speed

Answer

Acceleration

Answer

Velocity

Answer

Force