Mass, Speed, and Kinetic Energy

What happens to Kinetic Energy when speed is doubled?

• It remains the same.

• It doubles.

• It quadruples.

• It decreases by half.

What is the effect of increasing mass on Kinetic Energy at constant speed?

• Decreases kinetic energy

• Increases kinetic energy

• No effect on kinetic energy

• Increases potential energy

What is the relationship between speed and Kinetic Energy?

• Kinetic Energy decreases with the square of the speed.

• Kinetic Energy increases linearly with speed.

• Kinetic Energy increases with the square of the speed; if speed increases, kinetic energy increases significantly.

• Kinetic Energy remains constant regardless of speed.

What is Kinetic Energy?

• The energy an object possesses due to its motion, calculated using the formula KE = 1/2 mv².

• The energy stored in an object due to its position or configuration.

• The energy released during a chemical reaction.

• The energy associated with the temperature of an object.

What happens to Kinetic Energy if an object's speed decreases?

• If an object's speed decreases, its kinetic energy also decreases.

• If an object's speed decreases, its kinetic energy increases.

• If an object's speed decreases, its kinetic energy remains the same.

• If an object's speed decreases, its kinetic energy becomes zero.

Can Kinetic Energy be negative?

• Yes, it can be negative under certain conditions.

• No, Kinetic Energy cannot be negative; it is always a positive value or zero, as it depends on the square of the speed.

• It can be negative if the object is moving in the opposite direction.

• Only at absolute zero temperature.

What is the unit of Kinetic Energy?

• Pascals (Pa)

• Joules (J)

• Watts (W)

• Newtons (N)

If an object has a mass of 2 kg and is moving at 3 m/s, what is its Kinetic Energy?

• 6 Joules

• 9 Joules

• 12 Joules

• 3 Joules

How does mass affect Kinetic Energy?

• Kinetic Energy is inversely proportional to mass.

• Kinetic Energy is directly proportional to mass.

• Kinetic Energy is independent of mass.

• Kinetic Energy decreases as mass increases.

How does a Kinetic Energy vs Speed graph look?

• A straight line indicating direct proportionality

• A curve showing kinetic energy increases with the square of speed

• A horizontal line indicating constant kinetic energy

• A zigzag line showing fluctuating kinetic energy