science chapter 6,7,8

What is a Force ?

• a friction

• gravity

• lines

• a push or a pull

A force created when a surface moves against another surface is called ......

• a force

• walking

• friction

• gravity

All the objects are pulled by the earth. It is a process of ..............

• force

• gravity

• push

• earth

Materials that allow nearly all light to pass through them are ..... materials.

• translucent

• opaque

• force

• transparent

How does the shadow form ?

• An object blocks light from passing through it

• An object allows all light to pass through it

• An object allows some light to pass through it

• An object does not allow any light to pass through it

A Magnet has 2 poles. they are north pole and south pole. Where is the pole on a magnet ?

• in the middle

• in the ends of a magnet

• on the left

• on the right

What is an example of an object that is attracted by magnet ?

• plastic bag

• gold neklace

• copper jug

• iron nail

What is an instrument to measure force ?

• forcemeter

• scales

• measuring tape

• ruler

when a rough surface moves against a smooth surface, there is .... friction.

• more

• much

• less

• not

When we throw a basketball to the ring, the ball always fall down. It is because of ......, so the ball always fall down.

• force

• friction

• gravity

• water