Forms of Energy

Which two objects use electrical energy to move an object?

• a fan and an electric sharpener

• radio and a stove

• lamp and TV

• a phone and a camera

Students were asked to list observations of the uses of energy in the classroom. One

student’s list is provided.

Which observations listed involved the use of electrical energy?

• 1,2,6

• 3,4,6

• 1,4,5

• 1,4,6

The teacher opened a window in the classroom to cool down the room. Which of

these activities uses the same type of energy that the teacher used to open the

window?

• Playing the drums using mechanical energy

• Burning wood using thermal energy

• Lighting lightbulbs using electrical energy

• Talking to someone using sound energy

A student designed the circuit above. Which switches should the student close to

produce sound energy only?

• Switch 2 and Switch 3

• Switch 1 and Switch 4

• Switch 1, Switch 2, and Switch 3

• Switch 1 and Switch 3

Tags

NGSS.MS-ETS1-1

Observe the circuit shown. Which procedure can a student use to turn on the green

and red lights only?

• The student can close switch A and switch B, but leave switch C open.

• The student can close switch B and switch C, but leave switch A open.

• The student cannot follow any procedure to turn on the green and red lights only.

• The student can close switch A and switch C, but leave switch B open.

The arrows in the diagrams below represent light. Which diagram best shows how a

glass mirror would reflect light?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-2

A clear, glass beaker is filled half-full of water. A plastic spoon is placed in the beaker,

and one end rests against the top edge of the beaker. When viewed from the side, the

bottom of the spoon does not line up with the top of the spoon.

What causes this to happen?

• Light rays bend the plastic spoon.

• Light rays are absorbed by the plastic spoon.

• Light rays are refracted in the water.

• Light rays are reflected by the water.

Observe the image. After reflecting off of the mirror, which object will the light

coming from the laser most likely strike next?

• marble

• apple

• laser

• rock

Tags

NGSS.MS-PS4-2

Students were asked to investigate the behavior of light. Students were given a candle

and a piece of cardboard with a hole in it. Students placed the cardboard between the

candle and the wall and observed the location of the image on the wall.

Which property of light causes the image of the candlelight to appear near the bottom

of the wall?

• Light refracts when it travels through a new medium.

• Light reflects off of objects at a complementary angle.

• Light travels in a straight line until it strikes an object.

• Light bends around objects when it passes them.

What are two things that can happen to light as it passes through the prism.

• Light will reflect off of the prism.

• Light will refract off the prism.

• Light will be absorbed by the prism.

• Light will form a rainbow on the other side of the prism.

Tags

NGSS.MS-PS4-2