Unit 5.1,5.2

Force cannot be measured.

• TRUE

• FALSE

Friction acts in the same direction that objects is moving in.

• TRUE

• FALSE

Friction can be both helpful or not helpful.

• TRUE

• FALSE

Rough surfaces creates less friction than smooth surface.

• true

• false

Gravity makes all objects fall down towards the Earth.

• true

• false

Tags

NGSS.5-PS2-1

Yezmaine slipped on the floor where water had spilt. What made her to fall?

Choose the correct answer.

• The water created a rough surface on the floor. There was more friction between her shoes and the floor.

• The water created a smooth surface on the floor. There was less friction between her shoes and the floor.

The force between an object and the surface it moves on its called ________.

• forcemeter

• gravity

• newton

• friction

The force that pulls objects towards the Earth is called ______

• force

• friction

• gravity

• forcemeter

Tags

NGSS.5-PS2-1

During recess, you jump off the slide. What keeps you from floating away into space?

• Your friends are holding you down with their invisible superpowers.

• The monkey bars on the playground have a special grip that keeps you on Earth.

• The Earth pulls on you with a special invisible force called gravity.

• You're too heavy to float away.

Tags

NGSS.3-PS2-1

NGSS.5-PS2-1

Two students wanted to measure the force needed to move a block of wood. Choose the correct answer whether the forcemeter is used in the correct way.

• A

• B

• A & B are incorrect

Tags

NGSS.MS-PS2-2