7 P 2 3

A drawn bow possesses mechanical energy in the form of _______________. After the arrow is released, the energy is transformed into _________________.

• potential energy; mechanical energy

• elastic potential energy; kinetic energy

• gravitational potential energy; kinetic energy

• elastic kinetic energy; mechanical kinetic energy

Tags

NGSS.MS-PS3-5

What is this graph showing?

• Gradually slowing down

• Gradually speeding up

• Constant speed

• Stopped

Tags

NGSS.MS-PS3-1

What is this graph showing?

• Fast constant speed

• Slow constant speed

• Accelerating

• At rest

Tags

NGSS.MS-PS3-1

Kinetic energy depends on the ________ and ________ of the object.

• Height (position)

• Mass

• Speed

• Friction

Tags

NGSS.MS-PS3-1

What is energy?

• rate of work

• Motion of an object

• ability to do work

• force over time

The food you eat provides your body with ______________energy.

• nuclear 

• chemical

• heat 

• radiant

Tags

NGSS.MS-LS1-7

A lamp begins with electrical energy when plugged in and turns into _________ energy when the light comes on.

• mechanical

• kinetic

• radiant

• sound

Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy transformation is occurring from the battery to the light being given off by the computer?

• chemical - light - sound

• mechanical - chemical - electrical

• mechanical - electrical - light

• chemical - electrical - light

Our bodies convert chemical energy into

• light energy.

• radiant energy.

• mechanical energy.

• thermal energy.

Tags

NGSS.MS-LS1-7

Which of the following shows the best examples of the energy conversion in a battery powered flashlight?

• Chemical >>> Electrical >>> Radiant

• Electrical >>> Mechanical >>> Chemical

• Mechanical >>> Radiant >>> Electrical

• Radiant >>> Electrical >>> Chemical