FINALS

Question 1

When a piece of metal heats up and glows, it gives off light waves and ______.

Answer 1

Infrared radiation

Question 2

Which of the following forms of energy has a wavelength shorter than visible light?

Answer 2

Gamma rays

Question 3

Which of these energy forms has the strongest wave?

Answer 3

Gamma rays

Question 4

Which of the following form of energy on the electromagnetic spectrum?

Answer 4

X-Rays

Question 5

Astronauts wear special suits that protect them from what form of energy?

Answer 5

X-Rays

Question 6

A radar system uses reflected _______ to locate objects.

Answer 6

Radio waves

Question 7

What does the number, such as 98.7, of a radio station represent?

Answer 7

The frequency of the radio wave

Question 8

Ultraviolet waves from the sun are dangerous because they can damage skin. Why do they cause damage?

Answer 8

They are high in energy

Question 9

Which part of solar energy can cause sunburn and skin cancer?

Answer 9

Ultraviolet rays

Question 10

What is the lowest point on a wave?

Answer 10

Trough

Question 11

The distance from one peak to the next wave is called the _______.

Answer 11

Wavelength

Question 12

A high-frequency wave has ______ than a lower frequency wave with the same amplitude coming from the same source.

Answer 12

A shorter wavelength

Question 13

A wave transports ____ from one place to another.

Answer 13

Energy

Question 14

Which of the following does NOT travel in the same type of wave as others?

Answer 14

A cry for help

Question 15

A wave’s frequency refers to _____.

Answer 15

The number of wavelengths passing by a given point in a period of time

Question 16

Which is a property of light?

Answer 16

Wavelength

Question 17

What is a wavelength?

Answer 17

The distance between two neighboring troughs in a wave

Question 18

What is the distance between two neighboring wave peaks/crests called?

Answer 18

Wavelength

Question 19

Which kind of mirror is curved in, like a bowl?

Answer 19

Concave mirror

Question 20

Which kind of mirror curves outward?

Answer 20

Convex mirror

Question 21

Which characteristic of a mirror makes it possible to predict information about the images it produces?

Answer 21

Its shape

The shape of a mirror is related to the type of image it produces.

Question 22

Which material reflects almost 100% of the light that strikes it?

Answer 22

A mirror

Question 23

When light strikes a straight mirror it is ______.

Answer 23

Reflected evenly, in a predictable path

Question 24

Which type of mirror has a flat surface, shows an upright same-size image, and reverses the image left to right?

Answer 24

Plane mirror

Question 25

Which type of image will a plane mirror produce?

Answer 25

Same size and right side up

Question 26

Looking at a glass of water from the side, a spoon placed inside it looks bent at the water line. Why?

Answer 26

Light rays change direction as they enter water

Question 27

A rainbow forms when raindrops act like tiny prisms that separate light into its component colors, which always appear in the same order. Which process explains this?

Answer 27

Refraction

Question 28

What is the name of the process in which light passes through materials?

Answer 28

Transmission

Question 29

Which of the following clothes items best reflects the most light?

Answer 29

A white cotton t-shirt

Question 30

Which statement about the electromagnetic waves is true?

Answer 30

They have a wavelength and a frequency

Question 31

Infrared waves, ultraviolet waves, and microwaves all belong to which spectrum?

Answer 31

Electromagnetic

Question 32

For a guitar string to produce sound it must ____.

Answer 32

Vibrate

Question 33

What is a tsunami?

Answer 33

A giant ocean wave