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

Tags

NGSS.MS-PS3-5

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-PS3-5

NGSS.MS-PS3-1

What is the formula for calculating mechanical energy?

• ME = KE + PE
• ME = KE x PE
• ME = KE / PE
• ME = KE - PE

Tags

NGSS.MS-PS3-4

Which of the following best represents an example of mechanical energy being converted into electrical energy?

• A wind turbine turning to generate electricity
• A stove heating up food
• A light bulb producing light
• A battery powering a smartphone

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

NGSS.MS-PS2-4

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-PS3-5

NGSS.MS-PS3-2

Which of the following energy transformations occur when a toaster is being used?

• Electrical energy to thermal energy
• Thermal energy to electrical energy
• Mechanical energy to electrical energy
• Chemical energy to electrical energy