The unit for force is this. The unit for distance is this.
What are newton and meter?
100
This is the force that opposes motion.
What is friction?
100
Newton was a famous this.
What is scientist?
100
This is a change in position compared to a reference point or place.
What is motion?
200
Momentum
What is mass times velocity?
200
The three types of speed are this, this, and this.
What are instantaneous, constant, and average?
200
The four types of friction are this, this, this, and this.
What are static, sliding, rolling, and air resistance?
200
Newton figured that there was a this that made objects move towards each other.
What is force?
200
The more momentum something has the harder or easier it is to stop.
What is harder?
300
Acceleration
What is change in velocity divided by time?
300
force is equal to this times this.
What is mass times acceleration?
300
One way to reduce friction is to change this type of friction to this type of friction.
What is sliding to rolling?
300
Newton was born around this many years ago.
What is 350?
300
A lighter or heavier object speeds up slowly
What is heavier?
400
pressure
What is force divided by area?
400
This, this, this, and this are forces that can be found in nature.
What are wind, magnetic attraction, gravity, and friction?
400
One way to reduce friction is to use these.
What are lubricants?
400
All/some/none of the objects in the universe are attracted to one another.
What is all?
400
This is speed in a given direction. This is a change in it.
What are velocity and acceleration?
500
Speed
What is distance divided by time?
500
Define balanced forces and unbalanced forces.
Balanced forces are equal force acting in opposite direction with a Net Force of 0. Unbalanced forces are forces acting in the same direction added together or forces that don't have a Net Force of 0.
500
The strength of the force of the friction depends on two factors, the types of this and how hard they what together.
What are surfaces and rub?
500
All objects in the universe are attracted to each other due to force of this.