8th Grade Mechanical Energy

Which of the following is an example of potential energy?

• A stretched rubber band
• A running car engine
• A spinning top
• A bouncing basketball

Tags

NGSS.MS-PS3-2

Which of the following statements best defines mechanical energy?

• The sum of kinetic energy and potential energy in a system
• The energy from sunlight
• The energy generated by a chemical reaction
• The energy produced by a machine

Which of the following best describes kinetic energy?

• The energy of an object due to its motion
• The energy released during a chemical reaction
• The energy from electrical currents
• The energy stored in an object

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is an example of kinetic energy?

• A moving car
• A still rock
• A parked bicycle
• A charged battery

Tags

NGSS.MS-PS3-1

Which of the following factors affect the amount of potential energy possessed by an object?

• Height and mass
• Temperature and color
• Speed and volume
• Pressure and density

Tags

NGSS.MS-PS3-2

What is the relationship between kinetic energy and the mass of an object?

• Kinetic energy increases with an increase in mass
• Kinetic energy decreases with an increase in mass
• Kinetic energy remains constant regardless of mass
• Mass has no effect on kinetic energy

Tags

NGSS.MS-PS3-1

Which of the following best describes the law of conservation of energy?

• Energy cannot be created or destroyed, only transferred or transformed.
• Energy can only be converted from one form to another.
• Energy can be created or destroyed, but never transferred or transformed.
• Energy is constantly being created and destroyed.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What happens to the total amount of energy in a closed system according to the law of conservation of energy?

• It remains constant
• It decreases
• It increases
• It fluctuates

When a ball is thrown into the air, what happens to its potential energy as it reaches its highest point?

• It is at its maximum
• It is increasing
• It is decreasing
• It is zero

Tags

NGSS.MS-PS3-2

When a pendulum is at its highest point, what type of energy does it have the most of?

• Potential energy
• Thermal energy
• Kinetic energy
• Sound energy

Tags

NGSS.MS-PS3-2