Forces Quiz

1. Name the force that holds things to the Earth.		Air Pressure Gravity Speed Weight
2. Look At the Picture. What force is slowing the parachute down?		Upthrust Friction Air Resistance Gravity
3. An object floats. Are the forces balanced, or unbalanced?		Balanced Unbalanced
4. Name the force that supports the floating object.		Gravity Tidal Forces Air Resistance Upthrust
5. Name the force produced when two objects are rubbed together.		Friction Gravity Heat Resistance
6. What two forms of energy are produced when objects are rubbed together?		Sound and Light Heat, Sound and Light Heat and Light Heat and Sound
7. Bob the Shark swims quickly through the water. Towards which direction is the biggest force?		Up Down Left Right
8. Is the see-saw balanced?		Yes. No.
9. How can you tell?		They are different weights. Because the see-saw would bend. When doubling the 2nd weight, you must halve its distance from the fulcrum. The 1kg is too far away.
10. A boy stretches an elastic band. What type of energy does it have?		No energy Potential (stored) energy Kinetic (moving) energy

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