Unit Review #2

Ryan rubs two sticks together quickly. When he stops rubbing the sticks, he notices that they are warm to touch where he rubbed them. Which type of energy has been produced?

• sound energy

• thermal energy

• light energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Select the two examples of kinetic energy.

• A rock sitting at the top of a hill.

  A dog playing fetch

• A car driving down the highway

  A dog playing fetch

• A dog playing fetch

  A rock sitting at the top of a hill.

• A stretched rubber band, but not moving.

  A car driving down the highway

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In the following example, identify where the heat is coming from AND the type of heat transfer.

The handle of a pot is hot and burns your hand.

• Hand, Convection

• Hand, Conduction

• Pot handle, convection

• Pot handle, conduction

Describe the movement of thermal energy.

• from objects with no heat to objects with heat

• from objects with more less kinetic energy to objects with more kinetic energy

• from objects with direct contact between them

• from objects with higher temperatures to objects with lower temperatures

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

Compare the three waves in the image above. What do the waves have in common?

• same amplitude and wavelength

• same frequency and wavelength

• same wavelength and energy

• same frequency and amplitude

Tags

NGSS.MS-PS4-1

Caroline tried to unscrew the stuck lid of a glass pickle jar. After a few failed attempts, she ran some hot water over the metal lid for a few seconds. Once the lid heats up a little bit, it expands and becomes easier to unscrew. Which vocabulary term correctly describes how heat was transferred from the water to the lid?

• conduction

• convection

• radiation

• absorption

Match the following wave locations with their correct letter label.

• Wavelength

• C

• Amplitude

• A

• Rest Position

• D

• Crest

• B

Tags

NGSS.MS-PS4-1

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 5

• 3
• 4

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

The potential energy of motion PLUS the kinetic energy of motion

• kinetic

• potential

• mechanical

• chemical

Tags

NGSS.MS-PS3-2

If a cotton ball and a brick are both held 30 feet above the ground, which object has more gravitational potential energy?

• the cotton ball, because it has more mass

• the cotton ball, because it has less mass

• the brick, because it has more mass

• the brick, because it has less mass

Tags

NGSS.MS-PS3-2