The force that one surface exerts on another when the two rub against each other is called this
What is friction?
100
True or false: A body has force.
False. A body does not have force, rather it exerts it.
100
If the graph line in a distance-versus-time graph is a straight diagonal line, the object is doing this.
What is moving at a constant velocity?
200
This is represented by the letter k.
What is elastic constant.
200
F = M x A
is what law?
What is Newton's 2nd Law?
200
The direction in which gravity works.
What is toward the center of the Earth?
200
A vector shows this.
What is orientationand direction in which a force is applied?
200
A man walks around a track. As he walks around the curved part of the track, what happens to his speed and velocity?
What is speed stays the same, velocity changes?
300
This is the results of a study on deformation of elastic systems..
What is Hooke´s Law.
300
Two identical ice skaters who push off of each other will move at what speed and in what direction?
What is same speed in opposite directions?
300
When you push an object or break it with your hands, this is an example of...
What is Contact Force?
300
This is the unit used to measure the intensity of a force.
What is Newtons?
300
The rate at which an object is moving at a given instant in time is called
What is instantaneous speed?
400
The overall force on an
object after all the forces
are added together is called this
What is net force?
400
A rocket lifting off the ground and into space can be explained by this.
What is Newton's 3rd Law?
400
Forces that are formed by the electric and magnetic properties of material. They are responsible for keeping electrons around the nucleus, for lightning, or for making a compass work.
What is electromagnetic forces?
400
The relationship between speed and time is this.
What is speed=distance/time?
400
If you were to sketch a displacement-time graph and a speed-time graph for an object experiencing constant acceleration, what would they look like?
What is one would be a curved line, one would be a straight line?
500
The spring responds to applied force with another force of the same intensity and opposite sense.
What is recovery force of the spring?
500
As a car stops suddenly your body continues to move forward. This is an example of this.
What is Newton's 1st Law?
500
A force responsable for the existence of the nuclei of atoms.
What is Nuclear Force?
500
These are the three classifications of deformation.
What is rigid, plastic, and elastic.
500
Why would it be more important to know the velocity of a hurricane instead of the speed of the hurricane?