Energy Unit Review

What 2 forms of energy do you see here?

• light/radiant

  &

  thermal

• mechanical

  &

  electrical

• nuclear

  &

  chemical

• sound

  &

  potential

Tags

NGSS.MS-PS3-3

As the temperature of air increases, what happens to the speed of its molecules?

• Their speed will decrease because the particles have more kinetic energy

• Their speed will increase because the particles have more kinetic energy

• Their speed will increase because the particles have less kinetic energy

• Their speed will decrease because the particles have less kinetic energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What is Energy?

• The ability to do anything

• The ability to do work

• The investigation of nature

• A fact of life

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What is an example of potential energy?

• A bowling ball rolling down a lane

• A car parked in a lot

• An apple falling from a tree

• Sunlight heating up the atmosphere

Tags

NGSS.MS-PS3-2

Energy cannot be created or destroyed.

• True

• False

Tags

NGSS.MS-PS3-5

What transformation occurs in a toaster?

• Electrical to radiant

• Electrical to thermal

• Thermal to mechanical

• Solar to electrical

What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Total energy will always change in a system of objects.

• True; energy is destroyed due to friction

• False; energy cannot be destroyed, only transferred.

Tags

NGSS.MS-PS3-5

The faster an object moves, the ________ kinetic energy it has. 

• more
• less
• none of the above
• all of the above 

Tags

NGSS.MS-PS3-1

Friction always...

• Resists motion

• Is negative

• Goes against the applied force

• Is determined by weight