Unit 2 Science Review

Which of the following classroom activities could be completed using only MECHANICAL energy?

• Playing a game on a laptop

• Boiling water on a hot plate

• Writing with a pencil

• Using a microscope

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A student is looking directly at a lit nightlight through two different cardboard tubes as shown. Through which tube, if any, will the light be seen and why?

• The bent tube only because the light bounces off the side of the tube and travels through the tube to the student's eye

• The straight tube only because the light travels in a straight line directly to the student's eye

• Both tubes because light travels equally well along straight and curved paths

• Neither tube because both tubes absorb all of the light

Observe the image above. After reflecting off of the mirror, which object will the light coming from the laser most likely strike next?

• The marble

• The apple

• The rock

• The laser

Tags

NGSS.MS-PS4-2

Myopia is a condition more commonly known as nearsightedness. People with myopia cannot see objects clearly unless they are very close to them. Objects in the distance will look blurry. Myopia can be managed with corrective lenses in the form of glasses or contact lenses. How do corrective lenses help people with myopia?

• Corrective lenses reflect light to make it easier to see distant objects.

• Corrective lenses absorb light to make it easier to see distant objects.

• Corrective lenses block light to make it easier to see distant objects.

• Corrective lenses refract light to make it easier to see distant objects.

Tags

NGSS.MS-PS4-2

A class observed that when white light passing through a prism at a certain angle, the light changes to a rainbow pattern as it exits the prism at a different angle. What claim best explains the behavior of the light passing through a prism?

• The light reflected from the prism created a rainbow.

• The light bounces off the prism in different colors.

• Colored light enters the prism and changes to white light.

• Light refracts as they pass through the glass prism.

Tags

NGSS.MS-PS4-2

A student opens a drawer and sees several items inside.

 

Which of the items will refract light?

 

Choose FOUR correct answers.

Tags

NGSS.MS-PS4-2

Musical instruments cause the air to vibrate, sending waves that are detected by our senses. The energy from these vibrations of air is an example of —

• thermal energy

• light energy

• sound energy

• mechanical energy

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Students were asked to list observations of the uses of energy in the classroom. Which observations listed above involved the use of electrical energy?

• 1, 2, & 4

• 3, 4, & 6

• 1, 3, & 5

• 1, 4, & 6

Many commonly used items produce light energy when they operate. Some commonly used items would be useless without light energy. Which TWO items would not be able to perform their functions without light energy?

• Oven

• Microwave

• Cellphone

• Printer

• TV

A student designed the circuit above. Which switches should the student close to produce sound energy only?

• Switch 1 and 3

• Switch 1, 2, and 3

• Switch 1 and 4

• Switch 2 and 3

Tags

NGSS.MS-ETS1-1