Understanding Kinetic Energy

What is the formula for calculating kinetic energy?

• mass times velocity

• one half mass times velocity squared

• mass plus velocity

• velocity squared divided by mass

Which factor has a greater impact on kinetic energy if both mass and velocity increase at the same rate?

• Velocity

• Neither has an impact

• Mass

• Both have equal impact

In the example given, who has greater kinetic energy: the human or the dog?

• The dog

• The human

• Both have the same kinetic energy

• It cannot be determined

If two cars have the same mass, which one will have greater kinetic energy?

• Both have the same kinetic energy

• The faster car

• The slower car

• It depends on the color of the car

In Stage 1, if the mass of a black motorcycle is 191 kg and the red motorcycle is 382 kg, how do their kinetic energies compare if they have the same speed?

• It cannot be determined

• Both have the same kinetic energy

• Red motorcycle has more kinetic energy

• Black motorcycle has more kinetic energy

What happens to kinetic energy if the velocity of an object doubles?

• It halves

• It remains the same

• It quadruples

• It doubles

In Stage 2, if an object's speed doubles, what should happen to its kinetic energy according to the graphs?

• It should double

• It should decrease

• It should quadruple

• It should remain constant

If the mass of an object doubles, what is the expected change in its kinetic energy?

• It quadruples

• It remains the same

• It halves

• It doubles

Which graph would you choose if the speed of an object doubles and you expect the kinetic energy to quadruple?

• A graph showing quadrupling of energy

• A graph showing halving of energy

• A graph showing doubling of energy

• A graph showing constant energy

What is a key takeaway about the relationship between velocity and kinetic energy?

• Velocity has no impact on kinetic energy

• Both mass and velocity have no impact on kinetic energy

• Velocity has a greater impact than mass on kinetic energy

• Mass has a greater impact than velocity on kinetic energy