Unit Two: Forces and Motion
MLR: Describe and apply an understanding of the effects of multiple forces on an object, and how unbalanced forces will cause changes in the speed or direction.
Objectives: By the end of this unit, you should be able to:
1. Distinguish between distance and displacement.
2. Calculate average speed.
3. Explain the difference between speed and velocity.
4. Interpret motion graphs.
5. Identify how acceleration, time and velocity are related.
6. Describe how to calculate average acceleration.
7. Explain how positive and negative acceleration affect motion.
8. Explain how forces and motions are related.
9. Compare and contrast static and sliding friction.
10. Describe the effects of air resistance on falling objects.
Key Terms A:
acceleration
air resistanceaverage speedbalanced forcesdisplacement forcefrictioninstantaneous speed
air resistanceaverage speedbalanced forcesdisplacement forcefrictioninstantaneous speednet force sliding frictionspeed Static frictionunbalanced forcesvectorvelocity
sliding frictionspeed Static frictionunbalanced forcesvectorvelocityWeb Based Interactice Amusement Park Physics Assignment
Building an Amusement Park Ride Assignment
The Laws of Motion
Objectives: By the end of this unit, you should be able to:
1. Define and explain Newton’s three laws of motion.
2. Describe gravitational force.
3. Distinguish between mass and weight.
4. Explain why objects that are thrown will follow a curved path.
5. Identify action and reaction forces.
Key Terms B:
Centripetal accelerationcentripetal forceFirst law of motiongravityInertialaw of conservation of momentummomentumSecond law of motionThird law of motionweight
centripetal forceFirst law of motiongravityInertialaw of conservation of momentummomentumSecond law of motionThird law of motionweightNewton’s Laws Mini Videos
Newton’s First Law of Motion
Newton’s Second Law of Motion
Newton’s Third Law of Motion
Science Starters
