The different kinds of force

12 questions

1. Which kind of force pulls objects down towards Earth's surface?
2. The force that acts when surfaces grip or rub against each other is called ___.
3. Which is the correct name for the force that makes things float in water?
4. What do forces do? Forces cause objects to ___ their speed, direction of motion or shape.
5. Which of these forces only acts when the two objects are touching?
6. What is the best way of describing this force?
7. Match the correct definitions to the keywords.
8. Find the non-contact forces.
9. Match up each kind of force with its definition.
10. Which is the best explanation for why gravitational forces are non-contact forces?
11. Which force does not act on this boat? The boat is not moving.
12. Look at the picture. Which of the following forces does not act on the moving sled?

License: OGL