Newton's 1st Law
What is the definition?
Objects at rest remain at rest, and objects in motion remain in motion unless acted by an unbalanced force.
What is the definition?
Acceleration of an object increases with increased mass and decreases with increased mass
What's the definition?
For every action there is an equal and opposite reaction.
What is the unit for mass?
kg
What is the formula for force?
What is another name for this law?
Law of inertia
True or false, the law also states that the direction in which an object accelerates is the same as the direction of the force.
True
When a heavy football player and a light one run into each other, who uses more force?
They are both equal.
What is the unit for acceleration?
m/s^2
What is the formula for mass?
f/a
What does inertia mean?
The resistance of an object to a change in the speed or the direction of its motion.
True or false, acceleration of an object is directly proportional to the net force acting on it.
True.
Newton's third law states that any action will have a ----- and ----- reaction
equal and opposite
What is the unit for time?
s
What's the formula for acceleration?
f/m
What happens if you're riding a skateboard and hit something with the front wheels?
Your body will keep moving forward and fly off your skateboard since it only stops the board.
Would it take more force to push a cart that's empty or that is full?
The full cart.
Define unbalanced forces.
Forces that produce a nonzero net force.
What is the unit for force?
N
What's the formula for momentum?
m x v
True or false, motions need an unbalanced net force to maintain?
True
Acceleration is a change in..
Velocity
True or false, forces do not occur in pairs.
False
What is the unit for momentum?
kg m/s
What's the formula for speed?
d/t