Potential and Kinetic Review

What is kinetic energy?

• The energy of an object at rest.

• The energy of an object in motion.

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

• The energy released during a chemical reaction.

How does mass affect kinetic energy?

• Kinetic energy decreases with mass.

• Kinetic energy remains constant regardless of mass.

• Kinetic energy increases with mass.

• Kinetic energy is independent of mass.

What is the unit of energy in the International System of Units (SI)?

• Joule (J)

• Calorie (cal)

• Watt (W)

• Newton (N)

How can you increase the potential energy of an object?

• By increasing its mass only

• By raising its height or changing its position in a gravitational field

• By reducing its speed

• By cooling it down to lower temperatures

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

• It remains the same.

• It increases by a factor of two.

• It increases by a factor of four.

• It decreases by a factor of four.

What is the difference between elastic potential energy and gravitational potential energy?

• Elastic potential energy is stored in objects that can be stretched or compressed, like springs, while gravitational potential energy is related to an object's height in a gravitational field.

• Elastic potential energy is the energy of an object in motion, while gravitational potential energy is the energy stored in an object due to its mass.

• Elastic potential energy is only relevant in chemical reactions, while gravitational potential energy is related to the speed of an object.

• Elastic potential energy is the energy stored in an object due to its temperature, while gravitational potential energy is related to the distance between two objects.

What is an example of an object with potential energy?

• A rock at the edge of a cliff has gravitational potential energy due to its height.

• A car moving at high speed on a highway.

• A ball rolling down a hill.

• A person jumping off a diving board.

What is an example of an object with kinetic energy?

• A stationary bicycle

• A moving car

• A parked airplane

• A book on a table

What is potential energy?

• The energy of an object in motion.

• The stored energy of an object due to its position or state.

• The energy released during a chemical reaction.

• The energy required to change the temperature of an object.

What is the formula for calculating kinetic energy?

• KE = mv

• KE = 1/2 mv²

• KE = mgh

• KE = 1/2 mv