1. Chapter 14, Lesson 1 Newton’s First Law – The Law of Inertia force inertia friction position speed Newton’s First Law of Motion velocity acceleration incline pendulum gravity

2. force – a pull or push that acts on an object

3. inertia – then tendency of an object to resist a change in its state of motion

4. friction – a force that opposes the motion of one object moving past another

5. position – a comparison of an object’s location on a map to other things on the map

7. speed – how fast the position of an object changes with time at any moment

8. Newton’s First Law of Motion – “An object at rest tends to stay at rest; an object in motion tends to stay in motion.”

9. velocity – the speed of a moving object taken together with its direction of travel

10. acceleration – a change in velocity

12. incline – a ramp/slope

13. pendulum – something hanging from a fixed point that swings due to gravity and then out due to inertia Click on the picture below to check out a link on pendulums

14. gravity – something hanging from a fixed point that swings due to gravity and then out due to inertia Click on the picture below to check out a link on gravity.