Milestones Science Review

The action of a wave bouncing off a surface is called __________________.

• rarefaction

• refraction

• reflection

• diffraction

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NGSS.MS-PS4-2

What is the measure of how many waves pass a point in a certain amount of time?

• frequency

• wavelength

• midpoint

• crest and trough

A _____________________ is the distance between a point on one wave and the identical point of the next wave.

• amplitude

• wavelength

• frequency

• compression

Which wave has a greater frequency?

• A

• B

Tags

NGSS.HS-PS4-1

This is what you get when sound waves are reflected, or bounce back, off of a hard surface.

• Amplitude

• Pitch

• Volume

• Echo

Tags

NGSS.MS-PS4-2

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.

• Sound does not travel faster through a solid than a gas.

• Solid molecules are packed tightly.

• Gas molecules move slowly.

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NGSS.MS-PS4-2

What is the definition of CONDUCTION?

• When heat is transferred from objects like rays of light or electromagnetically.

• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.

• When heat transfers from objects that are touching.

• When heat transfers through the heater or AC in your house.

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What is the definition of CONVECTION

• When heat transfers through waves.

• When heat transfers from objects that are touching.

• a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.

• Heat traveling from the sun

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When you tell the direction and speed of an object, you give its

• motion

• velocity

• acceleration

• mass