Legal use of Force
What do we call something pushes or pulls on any matter.
Force
Describe what would happen if we had no friction.
Everything would float away from everything else. We would all just keep sliding... forever.
Gravity acts as Attractant force meaning it only works if...
It always works as long as there is mass
it only works if two objects touch first.
It always works on any object that has mass.
This universal force that allows a positive charge to attract itself to a negative charge. (works for molecules and socks)
Electric force
A universal force needs to be in contact with both objects for them to interact with each other.
True or False
False
objects that are not moving up or down or left or right; are said to have________________ Force.
Balanced
or
Unbalanced
Balanced
What type of friction keeps a box stationary and allows you to push off when you step.
Static Friction
objects fall faster and faster until they reach TERMINAL VELOCITY. which is caused by what type of friction.
Fluid Friction.
Which universal force allows certain metals to form strong polar bonds on a large scale. This force also works to keep like poles apart used in certain high-speed trains
Magnetic force
When being impacted by fluid Friction what happens to the amount of friction when you speed up.
The amount of friction increases
Who defined the three laws of gravity
Sir Issac Newton
What Friction are you using when you ride a bike or a skateboard.
Rolling Friction
Which ball has the most gravity...
A) a baseball on Jupiter.
B) a baseball on the earth's moon
C) a baseball on earth
a baseball on Jupiter
This universal force keeps positively charged protons linked together in a nucleus. When broken it releases lots of energy.
Strong Nuclear Force
Force is measured in what
Newtons
Eisteiniums
Fahrenheit
Netwons
1 Newton = 1 kilogram X 1 meter per second2
What Scientist created the equation that shows how mass effects energy use when moving (E=MC2)
Albert Einstein
What type of friction increases how fast you stop on sandpaper and decreases how fast you stop on Ice?
Sliding Friction
What force opposes Gravity as soon as an object touches the ground
Supporting Force
This universal force over time allows for atoms to split away and be used in other molecules, creating what we call atom half lives.
Weak atomic force
when we use math to find velocity using direction mass and speed we call this a ____________
Vector
Name any of the three laws of gravity
- An object at rest stays at rest unless acted up by a force.
- An object in motion stays in motion unless acted upon by another force.
- Every action has an equal and opposite reaction.
Put the three solid frictions in order from greatest friction to least friction.
Static, Sliding, and rolling
If you wanted to fall at a lower speed what would have to increase... Your________________________
Surface Area
If an object is moving past an object but is held to that object by gravity (or a string) it will continue to circle around that object (like our moon to our earth) what force is this
Centripetal force
If you have dog on a skateboard and the wind is blowing at ten miles per hour from the west and the a fan is blowing at 15 miles per hour from the east. Which way will the dog role.
West