Part A

Directions: Each of the items below is best represented by one of Newton's Laws of Motion. Write a 1, 2, or 3 for each of the following to indicate whether it's Newton's 1st Law, Newton's 2nd Law, or Newton's 3rd Law.

_____1. A climber pulls down on a rope causing his body to lift upward and rise up along the rope

. _____2. Force = Mass x Acceleration

_____3. Two bumper cars collide into each other and each car jolts backward

_____4.When you give your friend a lift on your bike you have to pedal harder and faster to keep the same speed (and acceleration) as you had before when you were on your bike alone.

_____5. For every action, there is an equal and opposite reaction.

_____6. A smaller cannonball leaves a cannon much faster than a larger, heavier cannonball fired from the same cannon.

_____7. When you are standing in a subway train, and the train suddenly stops, your body continues to go forward.

_____8. An object at rest/motion will stay at rest/ motion unless acted on by an outside, unbalanced force.

_____9. It is much easier to carry your backpack when it is empty rather than when it's full of textbooks.

_____10. A boy is going down a slide. As he reaches the bottom, the friction causes him to slow down and stop.

_____11. As the wheels of a drag racing car smoke and spin backward, they eventually begin to grip the race track and push backward on the road. In turn, the road reacts by pushing the wheels forward.

_____12.When you throw a bowling ball out of a canoe, the bowling ball moves forward and the canoe moves backward.

_____13. A little girl who has been pulling a sled behind her in the snow is crying because when she stopped to tie her shoe, the sled kept moving and hit her in the back of the leg.

_____14. A grocery cart is sitting motionless in the parking lot at Walmart. You decide to jump in and your friend pushes you around.

_____15. A basketball sits in the ball cage in the gym. It remains motionless.

Part B

Directions: Fill in the blank with the best word that completes the sentence.

1. Newton's first law of motion is also known as the LAW OF_____________________________________.

2. Newton's first law says that an object that IS NOT MOVING, or is at ___________________________, will stay at ___________________, AND an object that IS MOVING will keep moving with constant __________________________, which means at the same _____________________ and in the same ________________________, UNLESS an ______________________________ force acts on that object.

3. Newton's second law of motion is also known as __________________________________. Newton's second law says that when an __________________ force is applied to a ________________, it causes it to ____________________________. The greater the force that is applied, the ____________________ the acceleration. The lesser the force that is applied, the _____________________ the acceleration. If the same force is applied to an object with a large mass, it will have a _______________________ acceleration. If the same force is applied to an object with a small mass, it will have ______________________ acceleration.

4. The equation that is used to solve second law problems is F = ma.

What do each of the variables mean? F = ____________________ m = ______________________ a = ________________________

5. What UNIT of measurement must be used with each variable? F = ______________________ m = ______________________ a = ______________________

6. Newton's third law says that every time there is an ______________________________ force, there is also a _______________________ force that is ______________________ in size and acts in the ____________________________ direction. Newton's third law states that forces must ALWAYS occur in ___________________________.

7. Listed below are ACTION forces. Tell the REACTION force.

a. Your bottom pushing on your desk seat _______________________________________

b. A bat hitting a baseball ______________________________________________

c. Your finger pressing on your phone screen while texting __________________________