Work and Energy Review

What is the source of almost all energy on Earth?

• Earth’s hot core
• the Sun
• stored carbon
• moving water

Tags

NGSS.HS-ESS1-1

When a person strikes and lights a match, potential energy in the match is transformed into which types of energy?

• electrical and thermal
• thermal and radiant
• radiant and nuclear
• nuclear and kinetic

Tags

NGSS.MS-PS3-4

What energy transformation takes place when energy from the wind is used to spin a turbine?

• nuclear energy transformed to electrical energy
• chemical energy transformed to electrical energy
• radiant energy transformed to mechanical energy
• kinetic energy transformed to mechanical energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the floor become warm. During this process, what happens to energy?

• It is increased.
• It is conserved.
• It is decreased.
• It is created.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS1-4

Which set of terms best defines what affects kinetic energy and potential energy, respectively?

• position, gravity
• gravity, velocity
• velocity, height
• height, position

Tags

NGSS.MS-PS3-2

Seema knows the mass of a basketball. What other information is needed to find the ball’s potential energy?

• the volume and height the ball reaches
• the volume and shape of the ball
• acceleration due to gravity and the height the ball reaches
• acceleration due to gravity and the shape of the ball

Tags

NGSS.MS-PS3-2

If the kinetic and potential energy in a system are equal, then the potential energy increases. What happens as a result?

• Total energy increases.
• Stored energy decreases.
• Energy of motion decreases.
• Total energy decreases.

Tags

NGSS.MS-PS3-5

Which is occurring when work is being done?

• Energy is being reverted.
• Energy is being decreased.
• Energy is being increased.
• Energy is being transferred.

Tags

NGSS.MS-PS3-5

What is the unit of measure for energy?

• watt
• newtons
• joules
• meters per second

When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?

• work
• power
• gravitational energy
• chemical energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2