Force Diagrams
What does the length of an arrow tell us in a force diagram?
The strength of the force
Action and ____________ forces.
Reaction
For every action there is an equal and opposite reaction
Newtons' third law
A rocket pushes burning gases down which causes the rocket to launch up
Newton's 3 law
What is the name for the element with a chemical symbol Fe?
iron
Force diagram for a car hitting a curb with a force of 500 N.
Car and curb have opposing arrows with magnitude of 500 N.
Forces must be _________ in magnitude.
equal
A push or a pull that changes an object's motion
Force
What is the unit used for forces?
Newton
How many protons are in a calcium, Ca, atom?
20
Draw the force diagram for a bowling ball striking a pin with a force of 210 N.
Bowling ball and pin with have arrows in opposite directions of 210 N.
Forces act in ___________ directions.
opposite
This is always equal and opposite to the action force
Reaction
State Newton's 3rd Law.
For every action, there is an equal and opposite reaction.
This football team won the Super Bowl last night.
TBD
A person kicking a soccer ball with 207 N of force.
See example
Objects must be acting on _____________ objects in the action-reaction pairs.
different
To strike or hit something with great force
collide
Explain how Newton's 3rd law applies to you sitting on your chair.
You exert a downward force on the chair, the chair exerts an equal force upward.
This singer performed the Super Bowl halftime show last night.
Rihanna
A bird's wings flapping against the air with a force of 400 N.
See example
The force that objects have to oppose gravity when just sitting.
Normal Force
A change in position of an object relating to time
Motion
When bugs hit the windshield of a driving car, which force is greater, the windshield hitting the bug or the bug hitting the windshield? (Think Newton's 3rd Law)
Forces are the same, the motion is different due to mass
Which famous singer makes the best music? (There is a right answer).
Taylor Swift