Basics
What does Newton's 3rd Law State
For every action there is an equal and opposite reaction
What is the reaction when you push against a wall
What is the action reaction pair when a basketball player jumps.
Player pushes into the ground, ground pushes player up
True or False: A heavier object exerts a larger force in a collision
false forces are always equal
releasing air propels the balloon forward
What are the two objects involved in an force interaction called
action-reaction force pair
When a rocket launches what pushes the rocket upward
Gases pushing downward create an upward reaction
When a tennis racket hits a ball, what does the ball do back.
Pushes back on the racket with equal force
Why Do people think the bigger object wins in a collision
they assume larger mass means more power
How do astronauts move in space using newtons 3rd law
They push off the surface to change direction
What unit is used to measure force
Newtons
When swimming what does pushing water backwards do
Why can ice skaters glide easily across the ice
low friction allows clear action reaction forces
Does the third law apply to balanced or unbalanced forces
balanced forces
What is the action-reaction in a Newton's Cradle
one ball hits, the last ball swings out with equal force then it repeats
True or False: the Third law applies even when objects are not touching
true Ex. Gravitational force
What happens when you walk on a slippery surface
less friction means less reaction force making it hard to move
in rowing, what creates the boats forward motion
oar pushes water back, water pushes boat forward
What role does friction play in walking
it provides the reaction force that lets you push forward
How do car air bags relate to Newton's 3rd law
They absorb reaction forces to reduce injury
What is the relationship between the size and direction of action-reaction forces
Equal in size opposite in direction
How do birds use Newton's 3rd Law to fly
Wings push air down, air pushes wings up
How do Gymnasts flip off the vault
They push down on the vault, the vault pushes them upward
Why Can't you walk without friction
there is no reaction force pushing you forward
Name realworld technology based on Newton's 3rd law
Jet propulsion, hovercraft, Firearm Recoil