Chapter 5 - Matter in Motion

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!
is a force of between all matter in the . The three things that you need to know to calculate the of gravity are the of the first object, the of the second object and the between the two masses. You then multiply the two masses and divide by the of the distance. In you measure all forces in the unit of .