Show:
Forces
Motion
Kinds of Forces
Vocabulary
Miscellaneous
100
A force is a ______________ or a _____________
What is push or a pull?
100
How do we know that something is moving?
What is we compare it to something not moving and close by?
100
Friction is an example of this kind of force.
What is contact force?
100
energy of motion
What is kinetic energy?
100
A car moves along a road that has markers every mile. Over time, the car passes the markers in shorter periods of time. What best describes the motion of the car?
What is accelerating?
200
the type of force that acts on other objects by touching them
What are contact forces?
200
We use _____________ and _____________ to figure out the speed of an object.
What is time and distance?
200
these forces have a net force of zero
What is balanced forces?
200
a measure of how hard it is to slow down and stop an object
What is momentum?
200
An object is moving at a constant speed. If an equal force is applied in the opposite direction, what will happen to the motion of the car?
What is it will continue at a steady speed because the forces are balanced?
300
___________________ forces are unequal.
What are unbalanced forces?
300
the speed of an object in one direction
What is velocity?
300
these forces can keep an object at a steady speed or keep an object still
What is balanced forces?
300
the first force in the 3rd law of motion
What is action force?
300
Two identical soccer balls are rolling toward each other. When the soccer balls collide, Ball 1 is pushed back in the direction it came. Ball 2 keeps moving in the same direction. What can you conclude about ball 2?
What is ball 2 has more momentum?
400
these forces act on objects without touching them
What are indirect forces or forces at a distance?
400
Speeding up is called _____________.
What is acceleration?
400
Gravity is an example of this kind of force
What is force at a distance or indirect forces?
400
a measure of the distance an object moves in a certain amount of time
What is speed?
400
The motion of an object can be understood by examining what?
What is ALL of the forces acting on that object?
500
Unbalanced forces can cause a change in _____________.
What is motion?
500
Slowing down is called______________.
What is deceleration?
500
the tendency of an object to remain at rest, or for an object to remain moving. It relates to balanced forces and Newton's first law of motion.
What is inertia?
500
a force that opposes motion
What is friction?
500
Two space ships are traveling at the same speed in the same direction. If there are NO OTHER OBJECTS in their view, how fast will each ship appear to be moving to the astronauts in the opposite ship?
What is the ship will appear still because there is nothing to compare it to?