# Learn How College Students Are Making Extra Money In Their Spare Time

1. A lever is a long bar which moves around a fixed point called?

Fulcrum

2. Lever is a kind of?

Simple machine

3. How many kinds of lever are there?

Three - "First, Second and Third kind of lever"

4. In first kind of lever, fulcrum is between?

5. In second kind of lever, load is between?

Effort and fulcrum

6. In third kind of lever, effort is between?

7. A type of simple machine with two slanting sides ending in a sharp edge is called?

Wedge

8. A force that stops things from moving easily is called?

Friction

9. Fraction is a force which always opposes?

Motion

10. Friction forces are larger on?

Rough surfaces

11. Fraction forces are smaller on?

Smooth surfaces

12. Fraction forces between the air and moving object cause?

Resistance

13. Force that opposes any object moving through the air is called?

Air resistance

14. A force of attraction between two objects is called?

Gravity

15. Quantity of matter in an object is?

Mass

16. Mass is measured in?

Kilogram

17. Weight is the pull of?

Gravity

18. Weight is measured in?

Newtons

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