Quarter 4 Test 2 Review

A convex lens is thinner in the middle, so it makes objects look smaller.

• True

• False

Tags

NGSS.MS-PS4-2

Waves have several characteristics including troughs, which are the highest points of a wave.

• True

• False

Tags

NGSS.MS-PS4-1

Why are sounds not heard in space?

• Space is too cold for sound waves to travel.

• There is too much matter to travel through in space.

• Energy cannot travel in space.

• Space is a vacuum with few particles to travel through.

Why do whales, bats, and dolphins use echolocation?

• to orient themselves and find food

• to attract mates

• to tell other animals of their species where they are

• to scare away predators

Which is the best description of how sound waves travel?

• back and forth from the source

• upward from the source

• outward in all directions

• in a straight path to your ear

Sound does not travel through outer space.

• True

• False

The process of soaking up or taking in light without reflecting back is called __________.

• refraction

• absorption

• transpiration

• reflection

Tags

NGSS.MS-PS4-2

Which of the following is a translucent object?

• a metal sign

• a window

• a piece of colored glass

• a piece of wood

Tags

NGSS.MS-PS4-2

An echo is heard when sound waves are _____.

• reflected from a surface

• absorbed by a material

• changed by the Doppler effect

• moving through empty space

Tags

NGSS.MS-PS4-2

A higher frequency sound wave means fewer wavelengths pass a reference point in a given amount of time.

• True

• False