Unit 1 and 2 Review 2021

Headphones convert _______________________ energy to __________________________ energy.

• electrical to sound

• light to sound

• sound to electrical

• mechanical to sound

a computer keyboard uses ____________________ energy to operate.

• light

• sound

• electrical

• thermal

When oil is mixed with water and floats. It _______________ its physical properties

• maintains

• does not maintain

Tags

NGSS.MS-PS1-2

When oil is mixed with water it ______________________.

• melts

• dissolves

• maintains its physical properties

Tags

NGSS.MS-PS1-2

______________________is not soluble in water.

• salt

• honey

• oil

• sugar

a solution is formed when sugar ______________ in water

• dissolves

• melts

• disappears

• cools down

Tags

NGSS.MS-PS1-2

sugar dissolves faster in _________________ water

• cold

• solid

• hot

• fresh

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

plastic keeps wires from starting a fire because it is a good _______________________________

• conductor

• insulator

when a magnet is passed above a mixture of iron filings, carbon powder, and sulfur powder. The magnet will

• attract only the sulfur powder

• attract only the carbon powder

• attract the iron filings and the carbon powder

• attract only the iron filings

Tags

NGSS.MS-PS1-2

a ____________________ is more dense than water

• glass marble

• plastic ball

• foam ball

• cork

Tags

NGSS.MS-PS1-2