Physics Quiz on Energy and Motion

What is the shape of a projectile's path?

• Circular

• Parabolic

• Straight line

• Random

Which force affects a projectile after it is launched?

• Gravity

• Magnetism

• Air resistance

• Both a and c

A car moving on a straight road suddenly stops. What happens to its passengers?

• They stop instantly

• They move forward due to inertia

• They move backward

• They remain still

What is the SI unit of momentum?

• Newton

• Joule

• kg·m/s

• Watt

What is impulse equal to?

• Mass × velocity

• Force × time

• Work × time

• Distance × velocity

Which of the following is an example of an elastic collision?

• Two billiard balls bouncing off each other

• A car crash where both cars stick together

• A person jumping on a trampoline and not bouncing

• A rock sinking into the water

What happens to total momentum in a closed system?

• Increases

• Decreases

• Stays the same

• Doubles

What happens to kinetic energy when the velocity of an object is doubled?

• Doubles

• Quadruples

• Remains the same

• Is halved

The SI unit of work is:

• Joule

• Watt

• Newton

• Pascal

Work is done when:

• A force moves an object

• An object remains still

• A force is applied without movement

• No force is applied