Unit 8 Review

Brodie is using a lamp to help him see when he reads. He noticed that the bulb got warm after a while. What two forms of energy are being produced by the lamp?

• Light and sound

• Light and thermal

• Sound and thermal

• Mechanical and light

Joshua is making a trivet. A trivet is placed on a table beneath a hot pot. He knows that he must choose something that will NOT allow heat to pass easily from the hot pot to the table. Which material should Joshua use to make the trivet?

• Wood

• Aluminum

• Copper

• Iron

Tags

NGSS.MS-PS3-3

When a cricket rubs its legs together, ______________ energy is made because ______________.

• sound ; moving of legs causes vibrations

• thermal; of sound waves

• potential; of muscle contractions

• chemical; of electrical impulses

Tags

NGSS.MS-PS3-5

Which of the following is a conductor?

• Wooden spoon

• Rubber glove

• Metal spring

• Plastic duck

Which of the following is an insulator?

• Frying pan

• Oven mitt

• Logs

• all of the above

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Travels in straight lines, travels through empty space. Energy that our eyes can see: what is it?

• Sound

• Light

• Gravity

• Heat

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following is an example of an insulator?

• Wooden block

• Nail

• Penny

• Paper clip

Mark places a cold pat of butter on a slice of hot toasted bread. The butter melts. Which statement below explains why the butter melts?

• The hot toast quickly cools when the butter is placed on it.

• Heat moves from a cooler object to a warmer object.

• Heat is transferred because the hot toast and the butter are touching.

• The transfer of heat will stop when the butter begins to melt.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Differentiate among forms of energy. Which object converts electrical energy into mechanical energy?

• A violin

• A computer monitor

• A computer

• A toaster

What does Liam conclude about the insulating ability of the lunchboxes after analyzing the data from his test?

• Metal is better than foam.

• Foam and metal are equal.

• Foam is better than metal.

• Neither kept the items cold.

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4