Forces and Heat Assessment

What happens when you push a swing?

• The swing moves towards you.

• The swing gets heavier.

• The swing gets lighter.

• The swing moves away from you.

A force that works in the opposite direction to a moving object is called:

• Push

• Friction

• Pull

• Lift

Which of the following are examples of smooth surfaces.

• Water

• Tiles

• Carpet

• Grass

Which of the following are examples of rough surfaces.

• Sand

• Air

• Carpet

• Floor boards

Which object will have the largest amount of heat energy?

• 
• 
• 
• 

You accidentally get a hot tray out of the oven without wearing oven mitts. Your hands are now burnt! How did the heat transfer from the hot oven tray to your hands?

• By transmission.

• By radiation.

• By conduction.

• By convection.

A smooth surface has less friction which means objects will move ______.

A rough surface has more friction which means objects will move ______.

Draw a labelled diagram which shows how magnets attract and repel.

Draw an arrow on the picture to show which direction gravity works.