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Vocab
Newton's Law's
Friction
Motion
Force
100
What is a push or pull?
a force
100
When you push on a wall, the wall pushes back...even though neither one is moving. This is an example of which of Newton's Laws?
3rd law (equal and opposite)
100
Sledding would be an example of what type of friction?
Sliding
100
A straight line a distance time graph represents what kind of motion?
NO Motion
100
What net force results from balanced forces?
net force of 0
200
The rate at which an object is moving; distance divided by time.
Speed
200
During the sliders lab, the dixie cup went further when the marble started at a higher height. This is an example of which of Newton's Laws?
2nd Law of Motion
200
Skateboarding would be an example of what type of friction?
rolling
200
A straight line on a distance time graph represents what type of motion?
constant speed
200
Forces that result from combining ALL forces exerted on an object are called ___________________
net forces
300
What do we measure force in?
Newtons
300
The balloon rockets went forward because the air pushed back. This is an example of which of Newton's Laws?
3rd law of motion
300
A person swimming laps in a pool would be an example of what type of friction?
Fluid Friction
300
What is speed of a marble that travels 100 meters in 25 seconds?
4 m/sec
300
What type of force must be applied for an object to change motion?
unbalanced
400
Oil, grease and butter are examples of this. These substances help reduce friction.
Lubricants
400
A seat belt in a car stops a person from flying out the window when the car brakes. This is an example of which of Newton's Laws?
1st law of motion (inertia)
400
Which is harder to overcome? Sliding Friction or Rolling Friction
Sliding Friction
400
What is speed in any given a direction.
velocity
400
What is the pulling force that keeps Earth revolving around the sun?
gravity
500
What is the force that always acts opposite the direction of motion of an object?
Friction
500
How many laws does Newton have?
3
500
What could be the 2 results of a large amount of friction?
Heat and Wear (and tear)
500
What is the place or object used for comparison to determine whether or not an object is in motion?
reference point
500
If a box has a force arrow to the right of 10 N and a force arrow to the left of 12 N, what is the net force on the box?
2N to the left