Newton's 1st Law
An object in motion will stay in motion unless acted upon by what?
An outside unbalanced force
What is the formula we use in Newton's second law? F= what?
Force = mass x acceleration
What does Newton's third law state?
Every action has an equal and opposite reaction
A crash test dummy without a seatbelt hits the windshield when the car suddenly stops.
1st law
The mailman leaves a package on your porch, and it stays there until you pick it up
1st
What is inertia?
The resistance of any object to change in its velocity (state of motion).
As acceleration increases, what happens to force?
It also increases
A hammer exerts 25N of force on a nail. How much force will the nail exert on the hammer?
25N
Two people run into each other and bounce off each other
3rd
One soccer player kicks a ball very hard and it acclerates more than when another player kicks it very lightly
2nd
What will happen if you are standing in a bus and the bus suddenly stops?
You will fall forward
Which object (a bike or a truck) will be easier to move if pushed with the same force? Why?
The bike will be easier because it has less mass (and less inertia)
You hit a baseball with a bat. Which object will experience the greater force?
Both/Neither
The forces are equal and opposite
A ping pong ball accelerates more than a basketball when they are both pushed with the same force
2nd
An airplane uses it's engine to take off