Conduction and Convection Review

A burner is placed belwow the right side of a beaker. Which image shows the motion of the liquid that will result?

• A

• B

• C

• D

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which image shows the burner placement that will produce the convection cell shown below?

• A

• B

• C

• D

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Which of the following statements is true about the movement of fluid in a convection cell?

• Cool fluid rises because it is less dense.

• Hot fluid rises because it is denser.

• Cool fluid sinks because it is denser.

• Hot fluid sinks because it is less dense.

Tags

NGSS.MS-ESS2-6

A forest fire is burning near a cold lake. Which image correctly shows the convection cell that would develop?

• A

• B

• C

• D

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Using what you know about convection, what are 2 reasons why ocean water sinks in the Arctic Ocean?

• The surface water is warmer and less salty than normal.

• The surface water is warmer and more salty than normal.

• The surface water is colder and less salty than normal.

• The surface water is colder and more salty than normal.

Tags

NGSS.MS-ESS2-6

A copper rod connects two insulated beakers that contain liquids (the copper rod is Directly touching each liquid). The temperature of the liquid in Beaker A is 85°C and the temperature in Beaker B is 15°C. Over the next 60 seconds, what will occur?

• The temperature in Beaker A will decrease and the temperature in Beaker B will stay the same.

• The temperature in Beaker A will decrease and the temperature in Beaker B will increase.

• Both of the temperatures will remain the same.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

2 flasks are placed on top of each other with a barrier in between. The flask on top contains cool liquid and the flask on the bottom contains a warmer liquid. Using what you know about conductors and conduction, which set of flasks will change temperature most quickly?

• Set A (solid gold chunk between flasks)

• Set B (solid stone chunk between flasks)

• Set C (solid glass chunk between flasks)

• Set D (solid rubber chunk between flasks)

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

A chef leaves a copper spoon, a wooden spoon, and a steel spoon in a pot of boiling soup for several minutes. Which spoon should the chef grab with his bare hand to stir the soup?

• The copper spoon

• The wooden spoon

• The steel spoon

• The spoons would all be equally hot

Tags

NGSS.MS-PS3-3

A hot sun warms the surface of a lake on a calm day. What will happen to the cold water at the bottom of the lake?

• The cold water at the bottom will rise up and mix with the warm water at the top.

• The warm water at the top will sink down and mix with the cold water at the bottom.

• The cold water will remain at the bottom and won't mix very much with the warm water at the top.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Insulators prevent the loss of heat- the opposite of a conductor. A company is designing a mug that will keep coffee warm for a long time. Which one of these materials would do this best?

• Copper

• Steel

• Lead

• Rubber

Tags

NGSS.MS-PS3-3