# Shared Flashcard Set

## Details

Motion and Forces 2.3 2016
action/reaction
10
Science
02/25/2016

Term
 Every time one object exerts a force on another object, the second object exerts a force that is equal in size and opposite in direction back on the first object.
Definition
 Describe Newton's 3rd Law of Motion.
Term
 ACTION FORCE- nautilus pushing water out of its bodyREACTION FORCE- the ocean water behind the nautilus pushes back
Definition
 What are the action and reaction forces that propel the nautilus through the ocean?
Term
 FalseWhen you push down on a table, the table resists the push with the same amount of force
Definition
 T or FAction and reaction forces always result in motion.
Term
 ACTION FORCE- engines pushing exhaust downwardREACTION FORCE- the exhaust pushing back up on the rockets
Definition
 What are the action/reaction forces that make a space shuttle launch possible?
Term
 BALANCED FORCES only act on one object.ACTION/REACTION FORCES act on different objects.
Definition
 What is the major difference between balanced forces and action/reaction forces?
Term
 1st- Kangaroo jumps from a still position, and gravity brings it back to the ground. 2nd- If 2 kangaroos use the same force to jump, the less massive kangaroo will have more acceleration. 3rd- Kangaroo applies an action force to the ground. The ground provides a reaction force that propels the kangaroo forward.
Definition
 Explain how all 3 of Newton's Laws are at work as a kangaroo jumps.
Term
 You must be able to predict where Mars will be when the spacecraft reaches it. You must also be able to control the force on your spacecraft to arrive in the right place at the right time.
Definition
 If you are sending a spacecraft to Mars, you need to consider Newton's Laws to make some predictions. Explain.
Term
 1st- Overcome resting inertia to get canoe moving by applying an unbalanced force.2nd- Choose a less massive canoe for more acceleration.3rd- If you want to move straight ahead, you must push the paddle backwards.
Definition
 How can knowledge of Newton's Laws help you to win a canoe race?
Term
 The air coming out of the balloon is the action force. The air outside of the balloon pushes back on the released air, causing the balloon to fly erratically through the air.
Definition
 Explain Newton's 3rd Law in terms of a blown up balloon being released.
Term
 pairs
Definition
 Finish the following sentence:Forces act in ____________________.
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