Which term below best describes the forces on an object with a net force of zero? A) inertia B) balanced forcesC) acceleration D) unbalanced forces

Which of the following involves a contact force? A Gravity. B Air resistance. C Magnetic attraction. D Static electricity.

The usual units of force are named after A Olivia Newton John. B Newt Appleby. C Isaac Newton. D Isaac Hayes.

Friction is a force that A acts in the opposite direction to motion. B is also known as air resistance. C opposes gravity. D causes objects to cool downWeight is A the same as mass. B the force of gravity on an object. C a period of time. D the amount of matter in an objectThe force of gravity on you A increases as you move away from the Earth. B decreases as you move away from the Earth. C stays the same as you move away from the Earth. D is zero if you are in space.

Gravity on the Moon is about one-sixth the gravity on the Earth. The reason is that A the Moon is so far away. B the size of the Moon is smaller than the size of Earth. C the mass of the Moon is smaller than the mass of Earth. D there is no gravity in space.

The diagram below shows several forces applied to a metal ring. In which direction will the ring move?

The force that keeps an object like a ship afloat is calledA buoyancy. B flotation. C surface tension. D density.Which of the following is not attracted to a magnet? A Aluminium. B Cobalt. C Iron. D Nickel.Name four things a force can do.1234Draw and label the main forces acting on the cyclist.

Bring the magnets together in pairs as pictured here.For each pair of magnets that you bring together, describe the forces (push or pull) acting between them.

In this picture:A a parachutist floats to EarthB a plane flies through the airC people push a car to move itD a man holds the dog and there is no movementE a girl fires arrowsF a fish pulls the womans fishing lineG a boat is anchored to the bottom of the lakeFor each of the seven situations say:a what forces are acting

Copy and complete these statements using the words on the right to make a summary of this chapter.

contact friction magnetic mass newtons pullreaction unbalanced weigh

1 A force is a push or a ______. Forces can start or stop objects moving or slow them down.2 There are different types of forces. Some forces like friction are touching or ______ forces. Electrostatic, ______ and gravitational forces are examples of non-contact forces.3 ______ is a force which opposes motion. It occurs between two surfaces.4 Movement occurs when forces are ______.5 Action forces in one direction cause ______ forces in the other direction.6 ______ is the amount of matter in an object. It is the pull of the Earth on thismass that gives us ______ which is measured in ______ (N) because it is a force.For each of the situations in Figure below calculate the net force acting