1ST LAW
Complete this sentence:
An object at rest... ___________________________________________
WILL REMAIN AT REST AND AN OBJECT MOVING AT CONSTANT VELOCITY WILL CONTINUE MOVING AT A CONSTANT VELOCITY UNLESS IT IS ACTED UPON AN UNBALANCED FORCED
State the law:
Acceleration depends on ___________________________________________
the object's mass and on the net force acting on the object
State the law (Long Version)
If one object exerts a force on another object_______________________________
then the second object exerts a force of equal strength in the opposite direction
What has to be broken before you can use it?
an egg
What is inertia?
The tendency of an object to resist a change in motion
What is the formula (two versions- solving for acceleration and for force)
ACCELERATION = FORCE/MASS
F=M A
Describe the action/reaction forces when a person jumps on a diving board.
The action forces is the person jumping on the board and the reaction is the diving board exerting force upward causing the person to go upward
check study guide
What is filled with holes but can still hold water?
Sponge
How can you increase inertia?
By increasing the mass
Find the force making a 2KG ball accelerate at a rate of 2 m/s squared
F = 4N
Why don't action/reaction pairs cancel each other out?
Because they act on different systems
What is always in front of you but can not be seen?
The future
Explain how the law applies to what happens when the driver suddenly presses the brakes in a car.
The person inside the car will move forward
Find the acceleration of a 4KG ball that is pushed with 12N of force
12
----
4 = 3m/s squared
Who was the United States president during WWI
Woodrow Wilson
What can you break even if you never pick it up or touch it?
a promise
Why was 6 afraid of 7
because 7 8 9
How does increasing mass affect acceleration?
Increasing mass will decrease acceleration when a constant force is applied
Which country did the US fight in the war of 1812?
Germany
China
France
Britain
Britain
What goes up but never comes down?
your age
What is Peter Parker's middle name?
Benjamin
Joe
David
Benjamin
How does increasing the force affect acceleration?
Increasing the force lowers the acceleration
The Gettysburg Address was delivered during which war?
Civil
David's parents have three sons. Mike, Steve, and who?
David