Definitions
YES math!
Diagrams!
TRICKY...
100
A change in an object's position
motion
100
Calculate the net force and determine if the force is balanced or unbalanced.
balanced
0 Newtons
100
As mass increases, acceleration goes _____
down
100
Forces have both ______ and _________
strength and direction
200
Every Action has an equal and opposite reaction
Newton's Third Law
200
Calculate the net force and determine if the force is balanced or unbalanced.
unbalanced
2 Newtons to the right
200
The girl in the picture is using an ore to push the water backwards. At the same time the canoe is moving forward with the same amount of force. Which of Newton's Laws would explain why for every action there is an opposite and equal reaction?
Newton's Third Law
Action -> Reaction
Opposite and equal
200
When a person sits on a chair exerting a force downward, the chair exerts an equal force back up?
What is the name of the force?
Normal Force
300
F=ma
force equals mass times acceleration
Newton's Second Law
300
The acceleration due to gravity on Earth is about 10 m/s2. The force acting on an object on Earth is 40 Newtons.
What is the mass of this object on Earth?
mass equals 4 kilograms
300
A student flicked an index card with their fingertip, and the coin fell straight down into a plastic cup.
Why did the coin fall into the cup instead of remaining on the card?
Newton's First Law states that the coin will stay at rest unless acted on by a force. No force was acted on the coin, just the card.
300
Which of the following results in am increase in friction?
glue on paper
wax on snowboard
sand on icy sidewalk
oil on car engine
sand on icy sidewalk
400
An object's resistance to change its motion
Inertia
400
Speed can be shown on a graph of distance versus time. The graph shows the distance Martin traveled on his skateboard and the amount of time it took him to travel that distance.
What is Martin's approximate speed at 3 seconds?
0.4 m/s
400
The crash test dummy in the picture is not wearing a seat belt. When the car crashes into the truck the dummy will fly through the windshield.
Which one of Newton's Laws would explain why this happens?
Newton's first Law
Body in motion, wants to stay in motion until the truck collides with it. (continues to move forward)
400
Two Tennis balls sit side by side on a table. A third tennis ball is rolled gently into them.
Draw free-body diagrams to model this situation before and after the impact.
Label and explain your diagram
See teacher's example
500
Inertia- a moving object wants to keep moving and a stationary object wants to remain stationary
Newton's First Law
500
Speed can be shown on a graph of distance versus time. The graph below shows the distance Martin traveled on his skateboard and the amount of time it took him to travel that distance.
What may have happened in the time period between 5 seconds and 8 seconds?
He stopped moving
500
Which of Newton's Laws explains this phenomenon?
Newton's Third Law
500
Write a Claim to answer this question:
Why is the boat still moving when the team stopped rowing?
Use everything you know about FORCE and MOTION to explain your claim.
(Cite at least one of Newton's Laws)
According to Newton's first law, an object in motion will stay in motion unless a force slows or stops it. The boat is in motion and only after some time has passed and the friction of the water, will it then slow down.