forces

What is the force that causes objects to fall to Earth?

• Air resistance

• Gravity

• Water resistance

• Pressure

What is the name of the units that we measure force in?

• Einsteins 

• Newtons

• Kg

• Metres

In which direction does gravity act?

• Downwards

• Upwards

• In all directions

• Towards the centre of the Earth

When two objects rub together, what force do they produce

• Gravity

• Air resistance

• Friction

• Water resistance

Which of these uses friction?

• A parachute

• A ball falling through the sky

• Brakes on a bike

• A wind turbine

What do you call a push or pull on an object?

• Friction

• Force

• Gravity

• Balance

What can you do to prevent friction on a slide?

• wear slippery clothes

• make the slide slippery

• put something slippery between you and the slide

• all of the above

Which of the following is an example of a PULL?

• tug of war

• putting books in your desk

• pushing a wheelbarrow

• all of the above

without friction, an object in motion would never stop

• true

• false

material with _______________ surfaces have less friction

• smooth

• rough

• both