Inertia
What is Inertia
Inertia is the natural tendency of an object to resist changes in its state of motion,
What is the simplest definition of momentum?
Mass in motion
Newton’s First Law (Inertia) states that an object at rest will stay at rest unless acted upon by
an unbalanced force
What does gravity do?
Gravity pulls two objects towards each other
What is the formula to calculate speed?
Speed = Distance / Time
What is Friction
Friction is a force that opposes the motion of two surfaces in contact, acting as a resistance when objects rub against each other.
What is the simplest definition of momentum?
Mass & Velocity
What equation represents Newton's 2nd law
F=ma
What unit is gravity measured in?
m/s^2
What unit is speed in?
meters per second (m/s)
what is one area in the roller coaster that has inertia?
The very beginning
What is the standard unit of measurement for momentum?
Kilogram-meters per second (kg·m/s)
Newton’s Third Law states: "For every action, there is an equal and opposite _______."
Reaction
Is gravity different on different planets?
Yes!
What is a change in speed called?
acceleration
The amount of inertia an object has is directly related to its
Mass
If a bowling ball and a ping pong ball are moving at the same speed, which has more momentum?
The bowling ball, because it has more mass.
If you push a wall with 50 Newtons of force, how much force does the wall push back on you?
50 Newtons
What is gravity used to calculate?
Weight (W=mg)
What does speed depend on?
True or False: Inertia only applies to objects that are already moving.
False
In physics equations, which letter is used to represent momentum?
P
A rocket launching into space is a great example of which law?
3rd Law
What is earth's gravity?
9.8 m/s^2
If a car moves 25 meters in 5 seconds, what is its speed?
Speed = 5 m/s