This document discusses Newton's First Law of Motion and key concepts related to motion including inertia, force, friction, position, speed, velocity, acceleration, deceleration, incline, pendulum, and gravity. Newton's First Law states that an object at rest stays at rest and an object in motion stays in motion with the same speed and direction unless acted upon by an unbalanced force.

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

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

6. 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

11. acceleration – a change in velocity

12. deceleration – when a force causes the speed of an object to decrease

13. incline – a ramp/slope

14. 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

15. 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.