G5 revision

The change of state from a gas to a Liquid is called...............

• melting

• evaporation

• condensation

 

Solids dissolve more easily in …………………..

• hot liquids

• cold liquids

• room-temperature liquids

We can use a ……………… to separate a mixture of iron filings and sand.   

• screen filter

• magnet

• graduated cylinder

……………….. is a change in some properties of matter without forming a different kind of matter.       

• Physical change

• Chemical change

Air and water also ………. motion.           

• increase

• resist

•   don’t affect

   Which of the following is a contact force?

• Electricity

• Friction

• Gravity

……………. is a chemical change.

• Breaking glass

• Photosynthesis

• Cutting a paper

…………………… is the rate at which the speed or the direction of motion of an object changes over time. 

• Acceleration

• Inertia

• Gravity

What is Newton’s first law of motion?

• A moving object will speed up unless a force acts on it.

• A moving object will slow down unless a force acts on it.

• An object does not change its state of motion unless a force acts on it.

Inertia is the tendency of an object to resist any change in motion

• True

• False