Physics

STAR Vocabulary Words

Reference Point

Speed = change in distance/time

Velocity = change in distance/time  and direction

Acceleration= change in velocity/time

Sir Isaac Newton

Force-Types of forces (fluid friction, static friction, rolling friction, sliding friction, centripetal force, and gravitational force)

Newton's 1st Law (Inertia)

Newton's 2nd Law (Force =  mass x acceleration)

Newton's 3rd Law (Action Force = Reaction Force)

Universal law of Gravity

Test Questions

1. How do you know something is moving or has moved?

2. How is speed different than velocity?

3. How is acceleration related to speed?

4. Who was Sir Isaac Newton?

5. What will happen to inertia if you increase or decrease mass?

6. Explain why an object in space stays in motion longer than most objects on earth.

7. What will happen to the force if you increase the mass or acceleration?

8. What will happen to the force if you decreases the mass or acceleration?

9. What will happen to the acceleration if you if you increase or decrease the mass?

10. How does mass affect gravity?

11. How does distance affect gravity?

12. Explain why the Sun has a stronger gravitational pull than the earth.

 Links of Interest