Energy Unit

Changes in an object’s ________energy, also defined as energy in motion, can be used to determine that energy has been transferred to or from that object. 

• potential 

• light

• thermal

• kinetic

• sound

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

When two objects collide, how can we know that energy has been transferred from one object to the other? 

• The objects continue to move in the same direction. 

• One object is bigger than the other. 

• The objects stop moving. 

• The motion of the object's changes. 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-2

How does the total energy of this blob (water trampoline) system change over time? 

• The total energy of this system decreases when Anna flies off the blob. 

• The total energy in the system increases when David jumps onto the blob. 

• The total energy in the system decreases when David jumps onto the blob. 

• The total energy of this system does not change. 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS3-2

Which of the following gives us the best evidence that energy is present in an object? 

• The color of the object 

• The size of the object 

• The motion of the object 

• The odor of the object 

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Refer to Figure 1 (David and Anna drawing). At what stage does Anna have more kinetic energy than David?

• Stage B

• Stage A

• Anna never has more kinetic energy than David.

• Stage C

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

In this GIF, Anna is actually flying into the air. This happens because _

• energy is transferred to her.

• she uses her own stored energy to jump.

• she is lifted by ropes.

• the mass of the airbag (trampoline) changes.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS2-2

Energy can take many forms. Which two types of energy could be present when objects collide?

• All of the answer choices are correct

• Light and Heat

• Sound and Light

• Heat and Motion

Tags

NGSS.MS-PS3-5

Energy is always present and can be transferred and/or transformed throughout a system. Which examples best distinguish energy transfer and energy transformation?

• Transfer: Light energy becoming heat energy; Transformation: Electrical energy traveling through a wire.

• Transformation: What happens when energy is lost; Transfer: energy gained

• Transfer: Sound energy traveling across the room; Transformation: Electrical energy changing into light when someone flips a switch.

• Transformation: Sound energy traveling across the room; Transfer: Electrical energy changing into light when someone flips a switch.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS3-3

Which of the following best explains the relationship between kinetic and potential energy?

• As the potential energy in a system increases, the kinetic energy in that system will always remain the same.

• As the potential energy in a system increases, the kinetic energy in that system increases.

• There is not any relationship between potential and kinetic energy.

• As the potential energy in a system decreases, the kinetic energy in that system increases.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-2

Refer to Figure 1 and the pie graphs above. Which of the following statements uses accurate evidence to describe energy levels at certain stages of the blob jump?

• Pie graph A can be used to describe Anna's energy at Stage B.

• Pie graph B can be used to describe Anna's energy at Stage A.

• Pie graph D can be used to describe David's energy at Stage C.

• Pie graph C can be used to describe David's energy at Stage A.

Tags

NGSS.MS-PS3-1