Science Quiz B

The base of any building that helps to keep it strong is the ______.

• Lever

• Gravity

• Foundation

How many poles does a magnet have?

• 1

• 2

• 3

• 4

Answer explanation

A magnet has 2 poles - a north and a south pole.

______ can spread out the weight because of the curve.

• Columns

• Machine

• Arches

Answer explanation

Arches can spread out the weight because of the curves.

______ are not easily built and used on buildings.

• Columns

• Arches

• Machines

Answer explanation

Columns are not easily built and used on buildings.

A pyramid is strong because it has a ______ base.

• wide
• round
• small

Answer explanation

Pyramids are strong because they have a wide base.

1) An inclined plane is an example of a (a)   .

2) A device that helps make work easier is a (b)   .

3) A seesaw is an example of a (c)   .

4) Opposite poles of a magnet (d)   .

5) The force that pulls objects to Earth is called (e)   .

• simple machine

• machine

• lever

• attract

• gravity

• pulley

• repel

• friction

Tags

NGSS.MS-PS2-4

Label the different types of machines.

a

e

d

b

c

pulleys

lever

wheel and axle

gears

inclined plane