STAAR Review

Which examples show only mechanical energy being used to perform their functions?

• 1

• 2

• 3

• 4

• 6

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A toy car is shown. Which forms of energy are used to make the car move? Click the three forms of energy.

• Electrical

• Thermal

• Sound

• Mechanical

• Light

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Humans often use fans to stay cool. The rotation of the fan blades is

an example of what type of energy?

• Sound

• Thermal

• Mechanical

• Electrical

Tags

NGSS.MS-PS3-1

Which of the following is an example of the use of sound energy?

• A bat using echolocation to find its prey

• Blades on a wind turbine spinning

• A campfire heating marshmallows

• A power plant burning coal for power

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which elements in the image demonstrate the use of ONLY mechanical energy? Select THREE correct answers.

• A

• B

• D

• E

• F

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

A picture of trees, clouds, and a pond is shown. Which process did light undergo on the pond’s surface to produce the image of the trees and clouds?

• Refraction

• Absorption

• Reflection

• Transmission

Tags

NGSS.MS-PS4-2

Part A: A cold front moved through Austin, Texas. Which statement BEST describes the changes in Austin’s weather after the cold front moved through?

• The weather became cooler and rainy.

• The weather became cooler and clear.

• The weather became warmer and rainy.

• The weather became warmer and clear.

Tags

NGSS.MS-ESS2-5

A student conducting an investigation dissolves salt in water and then adds the salt solution to a beaker containing sand. The student now wants to separate the salt and the sand from the mixture. Which steps should the student perform to separate the salt and the sand from the mixture?

• Use a magnet to remove the particles that are magnetic. Pour the remaining mixture through filter paper.

• Pour the new mixture through filter paper. Use a magnet to remove the particles that are magnetic.

• Boil the mixture. Pour the new dry mixture through filter paper.

• Pour the mixture through filter paper. Boil the water that passes through the filter paper.

A student watches a toy car speed up as it rolls down a ramp. After the car gets to the bottom of the ramp, the car slows to a stop as it rolls across the classroom floor. Which force caused the car to speed up when rolling down the ramp, and which force caused it to slow down when rolling across the floor?

• Gravity caused the car to speed up when rolling down the ramp and slow down when rolling across the floor.

• Friction caused the car to speed up when rolling down the ramp and slow down when rolling across the floor.

• Gravity caused the car to speed up when rolling down the ramp, and friction caused the car to slow down when rolling across the floor.

• Friction caused the car to speed up when rolling down the ramp, and gravity caused the car to slow down when rolling across the floor.

Tags

NGSS.MS-PS2-2

A partial desert ecosystem food web is shown. Which organisms receive energy from a herbivore and a carnivore?

• Ground squirrels

• Golden eagles

• Scorpions

• Kit foxes

Tags

NGSS.MS-LS2-3