What is the effect of doubling the speed of an object on its kinetic energy? Given that Speed and KE have an Exponetial Relationship.

• Kinetic energy remains the same

• Kinetic energy doubles

• Kinetic energy quadruples

• Kinetic energy halves

Four skydivers are descending from the same altitude. Two have deployed their parachutes, and two are still in free fall. Based on the image, which skydiver has the LEAST gravitational potential energy?

• skydiver A

• skydiver B

• skydiver C

• skydiver D

Marcus is observing a boulder rolling down a hill near his home. If the boulder has a mass of 8kg and is moving at a speed of 1.2 m/s, what is its Kinetic Energy?

• 5.76 Joules

• 7.2 Joules

• 9.6 Joules

• 11.52 Joules

What type of energy is stored in a stretched rubber band?

• Kinetic Energy
• Potential Energy
• Sound Energy
• Nuclear Energy

What factors affect the amount of gravitational potential energy an object has?

• Height from the ground and Weight

• Velocity and Acceleration
• Mass and Speed
• Speed and Direction

Which factors determine the amount of kinetic energy an object possesses?

• Mass and velocity
• Temperature and mass
• Density and weight
• Volume and mass

When considering the law of conservation of energy, which of the following statements is true?

• Energy can be created out of nothing
• Energy can be destroyed
• Energy can change forms, but the total amount of energy stays the same. It cannot be created nor destroyed
• Energy only applies to mechanical systems

In an open system, how does the total energy change over time due to friction?

• Total energy gradually decreases due to friction
• Total energy rapidly increases
• Total energy remains constant
• Total energy fluctuates

In a closed system with no external forces, what happens to the total energy over time according to the law of conservation of energy?

• Total energy gradually decreases
• Total energy rapidly increases
• Total energy remains constant
• Total energy fluctuates

Which of the following is an example of potential energy?

• A moving car
• A sandwich

• Sunlight
• Sound waves