An object that is not in motion has ____________ forces acting on it.
What is balanced?
100
Two forces of equal strength in the opposite direction
What is balanced (net zero) forces?
100
Speed of a car that traveled 50 miles in 1 hour.
What is 50 mph?
100
The force of gravity is balanced with the force of the ground on the object (Is the object at rest or moving?)
What is at rest?
100
A ball falling to the ground
What is non-contact force (gravity)?
200
When you throw a frisbee to a friend, it moves ________ from you and ____________ your friend.
What is away and toward?
200
bike speeding up down a hill
What is unbalanced forces?
200
The section of the graph that shows that motion has stopped.
What is B?
200
A moving object will move forever and a resting object will rest forever, unless acted upon by an outside force
What is Newton's First Law?
200
Pulling a wagon
What is contact force?
300
An object in the background that doesn't move and is used to describe motion.
What is point of reference?
300
book resting on a table
What is balanced forces?
300
The sections of the graph that show motion at a constant speed
What are A and C?
300
A sled will keep moving at the end of a hill until this slows it down
What is friction?
300
A magnet attracting a nail across a table
What is non-contact force?
400
An object is in motion if it changes its distance from the ______________ ________________.
What is reference point or point of reference?
400
a swimmer diving into a pool
What is unbalanced forces?
400
The section of the graph that shows the fastest speed
What is section C?
400
The one that moves faster across a flat track when pushed with equal force, a steel ball with more mass or a wooden ball with less mass (Newton's 2nd law)
What is a wooden ball with less mass?
400
Friction between your feet and the ground
What is contact force?
500
Changing of position of an object
What is motion?
500
a car driving at a constant/steady speed
What is balanced forces?
500
A description for the motion of this graph
What is walking at a constant speed, stopped, sped up but at a constant speed?
500
According to Newton's 3rd law, for every action there is an _________ and _____________ reaction force.
What is equal and opposite?
500
Hair attracted to a balloon because of static electricity