Newtons Third Law
Newtons First Law
Newtons Seconds Law
100
What's Newton's Third Law?
Every action has an equal and opposite reaction.
(Momentum:when two objects collide, they exert equal and opposite forces on each other.)
100
What is Newton's First Law?
The law of intertia, objects in motion will stay in motion and will continue at a constant speed unless acted on by an unbalanced force.
-Credit to max
100
What's Newton's 2nd Law?
F=ma, force, mass, and acceleration depend on each other.
200
Why don't action reaction forces cancel each other out?
They are acting on different objects.
200
TRUE OR FALSE: More mass=more inertia
TRUE
200
Does acceleration change with the amount of force and how?
Yes, large force makes a proportionally larger acceleration.
300
What is the formula for momentum?
P=mv
300
What is an unbalanced force?
A force that results in a net force on an object and can cause a change in motion.
300
FILL IN THE BLANKS:
Unbalanced forces cause changes in ------, ---------, or both;
Speed, direction
400
TRUE OR FALSE:
It matters which part you call action and reaction.
False, they are simply labels there to show that there is always an action and reaction.
400
TRUE OR FALSE:
For more inertia you need more force to cause a change in motion
TRUE
400
SOLVE FOR ACCELERATION:
*Make sure to put the direction the object is moving, with the units m/s
10 m/s left
500
What is the momentum of a car with a mass of 1,000 moving at 20 m/s north?
20,000 kg*m/s
500
You're sitting on a chair at the dinner table. The seat exerts a force of 150N on you. You weigh 225 pounds. What is the normal force of the floor on your feet?
75N
500
What units do you use for mass, acceleration, and force?
Newtons, m/s, and usually kg
(other units for mass would also be acceptable in this case)