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Force and Motion Unit 2. Force  A push or a pull.

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Presentation on theme: "Force and Motion Unit 2. Force  A push or a pull."— Presentation transcript:

1 Force and Motion Unit 2

2 Force  A push or a pull

3 Inclined plane  A simple machine that is a flat surface with one end higher than the other

4 Speed  The distance an object moves in a given amount of time

5 Motion  A change in the position of an object as it is moving

6 Friction  A force that slows down a moving object when it rubs against another object

7 Magnet  An object that pulls objects made from iron toward it

8 Pole  One of the two ends of a magnet where the pull is the strongest

9 Attract  To pull toward- unlike poles on a magnet attract each other

10 Repel  To push away-like poles on a magnet repel each other

11 Magnetic Field  All of the invisible magnetic forces around a magnet

12 Gravity  A force that attracts objects to each other. The force of gravity holds you to Earth.

13 Simple Machine  A machine that makes work easier  Has few or no moving parts

14 Wedge  A simple machine made of two inclined planes joined together  Example: an ax

15 Lever  A simple machine made of a bar that moves on a fixed point  Example: a crowbar

16 Pulley  A simple machine made up of a wheel with a rope around it  Lifts heavy objects

17 Wheel and Axle  A simple machine made up of a wheel with a rod going through the center  Example: skates, cars

18 Screw  A simple machine with ridges or threads that wrap around a rod  Examples: a drill


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