Friciton
What is the strongest type of friciton
Static Friciton
What is this an example of " Cutting up pizza dough"
To change the size and and shape of an object
What is Force measured with
A force meter
Define mass
Mass- measure of the amount of matter in an object.
True or False
Force is a push that can change the motion of an object.
If you are riding a bike what type of friction are you experiencing?
Rolling Friction
What is this an example of, " pushing a toy car that was not in motion"
Move a stationary object
What are the two types of forces?
Contact and non contact
Define Weight
Weight- the force acting on the object due to gravity.
True or False
The mass of an object can never be zero
True
If you are in a pool what type of friction are you experiencing?
Fluid Friction
What is this an example of, " A driver pressing on the gas to increase the speed of there car thats already in motion"
To change the speed of a moving object
Contact Force- A force that is applied by objects in contact with each other.
Please describe the main differences between weight and mass
Weight can changed based on gravity mass does not change
True or False
We can not see force or its effects
False you can see its effects
Which way does friction push ?
What is this an example of " a soccer ball is coming my way and I kick it away from me"
To change the direction of motion
Describe what a non contact force is
Non Contact Force-A force that is applied by objects in without touching each other.
What is the difference between gravity and gravity on earth
Gravity on earth pulls to earths center
Gravity pulls towards any center
Is friction a contact force?
Yes
What is this an example of, " A biker hits the brakes to avoid a tree branch"
What are the three non contact forces we spoke about in class?
Gravity, Reaction Normal force, and Magnetic Force
If something has alot of mass will it require more or less force to push it?
More