science 3rd grade chapter 6

Which type of surface was it harder to write on?

• Aluminum foil

• Plastic sheet

• Cardboard

• Cardboard

The force that pulls all objects towards the center of the Earth is ....

• Gravity

• Force

• Friction

• Newton

The unit of measurement to measure force is called ...

• Forcemeter

• Hook

• Scale

• Newton

To measure force we use ...

• Scales

• Ruler

• Forcemeter

• Thermometer

The force that opposite movement between two surface is called ...

• Gravity

• Newton

• Motion

• Friction

Friction acts in the ...... direction of montion

• Forces

• Helpful

• Friction

• Opposite

Smooth surface create ....

• Same friction

• Mote friction

• Less friction

• Gravity

Which surface create more friction ...

• Rough

• Smooth

• Watery

• All false

Base on the picture above,

Hook is on the letter ....

• A

• B

• C

• D

What is the reading on the scale ....

• 0

• 1

• 2

• 3