Kicking a soccer ball is an example of this type of force
What is contact force
100
The two variables needed to find speed
What is distance and time
100
These are the variables used to calculate acceleration
What is speed and time
100
The units for force
What is Newtons
200
The force that opposes motion.
What is friction?
200
Two people are pushing with the same force on opposite sides of the couch. This is an example of a balanced or unbalanced force.
What is balanced.
200
The difference between speed and velocity
What is velocity has a direction
200
unit for acceleration
What is meters per second per second (m/s^2)
200
Definition: The change in position of an object in relation to reference points
What is motion?
300
Name two things that would lower friction.
What is lubricants, decreasing the pressure between the objects, smoothing a surface, using low friction materials.
300
The four fundamental forces.
What is gravity, electromagnetic, strong nuclear force, weak nuclear force?
300
The unit for speed
What is meters per second (m/s)
300
The three ways to change acceleration
What is speed up, slow down, change direction
300
State whether 30 m/s westward represents a speed or velocity. Why?
What is a velocity because it has a direction?
400
Name something that cannot happen without friction.
What is driving a car, writing with a pencil on paper, walking, throwing a ball
400
The definition of force
What is any action that can change the state of motion of an object?
400
Find the speed of a car traveling 100 m in 6 seconds
What is 16.67 m/s
400
Kaci accelerates her scooter along a straight path from 0 m/s to 7 m/s in 3 seconds. Find her acceleration.
What is 2.33 m/s^2
400
Friciton's affect on speed
What is friction slows down speed
500
Driving on a road requires friction. Name ways to increase friction on an icy road.
What is increase the weight of the object on the road, increase traction by using winter tires or chains around the tires?
500
One student is pushing on a stack of books with 13 Newtons east and another student is pushing in the opposite direction on the stack of books with 10 Newtons west. State the direction and force of the motion.
What is 3 Newtons to the east?
500
Calculate the distance traveled of a car moving at 20 m/s in 12 seconds.
What is 240 meters.
500
Explain why circular motion includes continuous acceleration even when the speed does not change.
What is in circular motion the direction changes?
500
Two ways to have a zero net force.
What is object is moving at a constant speed, object is not moving at all.