Rays

Which waves are the type that can give us suntans and sunburns?

• Infrared radiation

• Ultraviolet radiation

• Radio waves

• X-rays

Tags

NGSS.MS-PS4-2

What is one way to protect yourself from the sun?

• Wear flip flops.

• Wear sunglasses.

• Sit in the sun for a long time.

What is one way to protect yourself from the sun

• Don't wear sunscreen.

• Run around really fast.

• Get in the shade as much as possible.

• Talk to your friends

The following diagram shows the ray diagram when a torch light is torched towards a mirror. Which of the following is the correct reflected ray?

• 
• 
• 
• 

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Ariff is watching a cat on a wall using a periscope. Which of the following is the correct reflected ray diagram in the periscope? Tick the correct answer.

• 
• 
• None

• None

Tags

NGSS.MS-PS4-2

What can be observed about the spoon?

• The spoon looks bent.

• The water is clearer.

• The water level rises.

• Light is refracted.

Tags

NGSS.MS-PS4-2

What is the conclusion from your observation in this picture?

• Light travels in a straight line

• Light can be refracted

• Light can be reflected

• Light can pass through a transparent material

Tags

NGSS.MS-PS4-2

Which of the following shows that light travels in a straight line? Tick the correct answers.

• A

• B

• C

• D

• E

Which type of electromagnetic radiation is used in medical imaging to view the inside of the human body?

• Gamma rays

• X-rays

• Ultraviolet rays

• Infrared rays

Tags

NGSS.HS-PS4-4

What type of rays are emitted by the sun and can cause skin cancer?

• Gamma rays

• X-rays

• Ultraviolet rays

• Infrared rays