Forces and Movement

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

Forces are , pulls and twists. They are measured in . Forces have .

When you push against an object, it pushes against you with an equal but force.

Forces in the same direction . Forces in the opposite direction .

Weight is a , measured in Newtons, due to a gravitational field. It is worked out using the equation . is the amount of material in an object, and is measured in . The mass of an object does not change with gravity. The weight does.

Objects dropped in a gravity field accelerate at the rate regardless of mass.

Force is linked to acceleration by the equation F = .