Fourth Grade Review

Which simple machine changes the direction of the force, not the size of force?

• Screw

• Wedge

• Pulley

• Inclined Plane

Tags

NGSS.MS-PS2-2

Finish the sentence:

The more force...

• the farther the object will go.

• the slower the object will go.

• the more gravity.

• the more time.

Tags

NGSS.MS-PS2-2

The force of gravity...

• pushes objects apart

• pushes objects together

• pulls objects apart

• pulls objects together

Tags

NGSS.MS-PS2-4

A screw is a modified...

• Wheel and Axle

• Inclined Plane

• Lever

• Pulley

Why do simple machines make work easier?

• They change the amount of force needed to do work.

• They decrease the time to do a task.

• The reduce the amount of work to do.

• They increase the strength.

If you want to build a bird house, which simple machine will help your boards stay together?

• Lever

• Pulley

• Inclined Plane

• Screw

An axe is an example of a

• pulley

• inclined plane

• screw

• wedge 

In the picture, the shovel is being used to as a _____ to move the snow.

• Wedge

• Lever

• Pulley

• Wheel and Axle

Tags

NGSS.MS-PS2-1

Sandy and Nancy each kick a soccer ball. Sandy's kick does not even make it ten yards. Nancy's kick makes it more than 50 yards down the field. Why is this?

• Nancy is taller.

• Sandy is stronger than Nancy.

• Nancy's kick has more force.

• There is no reason

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

If you push with the same force on 3 boxes that are the same size but different weights, which will go the fastest?

• Box 1

• Box 2

• Box 3

• All boxes will move together.

Tags

NGSS.MS-PS2-2