Waves & Motion

A repeating pattern of motion caused by a disturbance.

• medium

• wave

• crest

• frequency

Tags

NGSS.MS-PS4-1

What is the correct definition of a wave?

• any motion in two directions, such as up and down

• a method of carrying matter from place to place

• a pattern of motion that repeats in a cycle

• a pattern of increasing energy

Tags

NGSS.MS-PS4-1

Which events can cause a wave to form in a lake? Choose 3!

• Water evaporates from the surface.

• A fish swims along the bottom of the lake.

• Wind blows over the surface.

• A turtle briefly lifts its nose above the surface.

• A rock drops into the water

Tags

NGSS.MS-PS4-1

These waves move up and down.

• Transverse Waves

• Longitudinal Waves

What are examples of longitudinal waves? Choose 2!

• light waves from the sun

• sound waves from a goose

• Lift a stretched rope up and down rapidly at one end.

• Push a spring toy back and forth rapidly at one end.

Tags

NGSS.MS-PS4-1

Which measurement of water waves is equal to the amplitude of the wave?

• the horizontal distance, or length, between two adjacent wave crests

• the vertical distance, or height, of a wave crest above calm water

• the horizontal distance, or length, between two adjacent wave troughs

• the time in which one cycle of the wave passes one position

Tags

NGSS.MS-PS4-1

A scientist is studying water waves on the surface of a lake. The scientist measures the vertical distance, or height, of a wave crest above calm water.

• the amplitude of the waves

• the wavelength of the waves

• the frequency of the waves

• the speed of the wind that forms the waves

Tags

NGSS.MS-PS4-1

A toy boat is floating in the middle of a lake.

How does the boat move when a water wave passes by?

• The boat moves up and down, as well as in the direction of the wave toward shore.

• The boat drops to the bottom of a wave trough, and then moves toward shore.

• The boat moves back and forth, as well as up and down, in a circular path.

• The boat is lifted to the top of the wave crest, and then moves toward shore.

Tags

NGSS.MS-PS4-1

What are examples of transverse waves? Choose 2!

• light waves from the sun

• sound waves from a goose

• Lift a stretched rope up and down rapidly at one end.

• Push a spring toy back and forth rapidly at one end.

Tags

NGSS.MS-PS4-1

This diagram is a model of two waves.

How do the two waves compare?

• Both waves have the same amplitude.

• Both waves have the same wavelength.

• Both waves have the same width.

Tags

NGSS.MS-PS4-1