Science 6: Motion and simple machines

Newton's first law of motion says an object in rest stays in rest and an object in motion stays in motion until a force acts on it.

A car bump into another car. one car goes forward and the other car goes backward. This is an example of the ________________ law of Newton.

An increase in force is related to an increase in mass and acceleration. This is Newton's ______________ law of motion.

The pull of one object on another is called...

What are 2 forces that work against inertia

The picture is an example of Newton's ______________ law.

A.2nd

B.3rd

C.1st

What type of simple machine is shown in the picture?

A.lever

B.screw

C.wedge

A fork and a spoon are examples of _________ class levers.

A.1st class

B.2nd class

C.3rd class

On a 2nd class lever the ___________________________ is between the effort and the fulcrum.

Which simple machine is used to open the window blinds?

A.screw

B.pulley

C.wheel and axle

Identify the picture.

A.pulley

B.block and tackle

C.fixed pulley

A bus waiting for riders to board is an examples of _______________ energy