Lenses and Refraction Quiz

Lenses and Refraction Quiz

3rd Grade

15 Qs

quiz-placeholder

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Lenses and Refraction Quiz

Lenses and Refraction Quiz

Assessment

Quiz

Physics

3rd Grade

Practice Problem

Easy

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a lens?

A transparent glass of plastic with curved sides

A type of mirror

A type of metal

A type of fabric

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the process of redirection of light rays as they pass from one medium to another called?

Absorption

Diffraction

Refraction

Reflection

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you differentiate between a convex and concave lens?

Convex lens is thicker in the middle, concave lens is thicker in the middle

Convex lens has thinner edges, concave lens has thicker edges

Convex lens has curved surfaces inwards, concave lens has curved surfaces outwards

Convex lens has curved surfaces outwards, concave lens has curved surfaces inwards

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the light rays when they pass through a convex lens?

They stop moving

They continue in a straight line

They diverge away from each other

They converge at a single point

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the light rays when they pass through a concave lens?

They converge at a single point

They continue in a straight line

They diverge away from each other

They stop moving

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the distance from the center of the lens to the focal point called?

Focal center

Focal distance

Focal point distance

Focal length

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes the image to be smaller or larger than the original object?

The shape of the lens

The size of the lens

The color of the lens

The focal length of the lens

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