MOTION AND FORCES QUIZ: Test Your Knowledge and ability on motion.
Motion and forces are fundamental topics in physics that explain how objects move and interact with one another. Understanding these concepts helps students analyze speed, acceleration, and the effects of forces in daily life and scientific applications. This quiz tests your knowledge of kinematics and Newton’s laws of motion.
Motion And Forces Quiz
1. Motion is defined as
A. Change in shape of an object
B. Change in position of an object with time
C. Change in size of an object
D. Change in color of an object
2. Which of the following is a scalar quantity?
A. Velocity
B. Acceleration
C. Speed
D. Force
3. The SI unit of speed is
A. km/h
B. m/s
C. m/min
D. cm/s
4. Velocity is best described as
A. Speed only
B. Speed with direction
C. Distance covered
D. Rate of change of force
5. Acceleration is the rate of change of
A. Distance
B. Speed
C. Velocity
D. Time
Motion And Forces Quiz
6. When a body moves at constant velocity, its acceleration is
A. Increasing
B. Decreasing
C. Zero
D. Maximum
7. Which graph represents uniform motion?
A. Curved distance–time graph
B. Straight-line distance–time graph
C. Zigzag graph
D. Vertical line graph
8. The slope of a distance–time graph represents
A. Acceleration
B. Speed
C. Force
D. Energy
9. Newton’s First Law of Motion is also called the law of
A. Action and reaction
B. Acceleration
C. Inertia
D. Momentum
Motion And Forces Quiz
10. Inertia is the tendency of a body to
A. Change its motion
B. Resist change in motion
C. Increase speed
D. Stop moving
11. According to Newton’s Second Law, force is equal to
A. m ÷ a
B. m × a
C. m + a
D. m − a
12. The SI unit of force is
A. Joule
B. Watt
C. Newton
D. Pascal
13. When a car suddenly stops, passengers move forward because of
A. Friction
B. Gravity
C. Inertia
D. Acceleration
14. Newton’s Third Law states that
A. Force equals mass times acceleration
B. Every action has an equal and opposite reaction
C. Objects remain at rest naturally
D. Energy is conserved
Motion And Forces Quiz
15. Friction is a force that
A. Increases motion
B. Opposes motion
C. Produces energy
D. Changes mass
16. Which surface produces the greatest friction?
A. Smooth glass
B. Wet floor
C. Rough surface
D. Polished metal
17. Momentum is the product of
A. Mass and velocity
B. Force and time
C. Speed and distance
D. Acceleration and mass
18. The SI unit of momentum is
A. kg/m
B. kg·m/s
C. N/m
D. m/s²
19. An object moving in a circle at constant speed is said to be
A. At rest
B. Accelerating
C. Uniformly moving
D. Stationary
20. Seat belts in cars are used mainly to
A. Increase speed
B. Reduce friction
C. Prevent injury due to inertia
D. Improve comfort
ANSWERS AND EXPLANATIONS on Motion And Forces Quiz
1. B – Motion means a change in position with respect to time and a reference point.
2. C – Speed has magnitude only and no direction, so it is a scalar quantity.
3. B – The SI unit of speed is meters per second (m/s).
4. B – Velocity is speed in a specified direction, making it a vector quantity.
5. C – Acceleration is the rate of change of velocity with time.
6. C – Constant velocity means no change in speed or direction, so acceleration is zero.
7. B – A straight-line distance–time graph shows uniform motion at constant speed.
8. B – The slope of a distance–time graph gives the speed of the object.
9. C – Newton’s First Law is called the law of inertia.
10. B – Inertia is the tendency to resist changes in rest or motion.
11. B – According to F = m × a, force equals mass times acceleration.
12. C – The SI unit of force is the newton (N).
13. C – Due to inertia, passengers keep moving forward when the car stops suddenly.
14. B – Newton’s Third Law states that forces occur in equal and opposite pairs.
15. B – Friction opposes motion between two surfaces in contact.
16. C – Rough surfaces produce more friction because of greater surface irregularities.
17. A – Momentum equals mass multiplied by velocity (p = mv).
18. B – The SI unit of momentum is kilogram meter per second (kg·m/s).
19. B – Circular motion involves continuous change in direction, so the object is accelerating.
20. C – Seat belts protect passengers by reducing the effect of inertia during sudden stops.
RELATED QUIZ
Chemistry Quiz