4-1
An object is in _____ if its position changes when compared to another object.
What is motion?
_____ = Rise/Run
Slope
The law of inertia.
What is Newton's First Law called?
An object with a greater gravitational force has greater _____
Mass
A push or pull on an object.
What is a force?
Your speed at a certain point in time.
What is instantaneous speed?
And object with more mass will have more _____
Inertia
What is the Law of Universal Gravitation?
What is a reference point?
____ = Distance/Time
Speed
The tendency of an object to resist change in motion.
What is inertia?
1. _____ changes depending on the force of gravity but 2. _____ doesn't.
1. Weight
2. Mass
Name 3 surfaces that could change the force of friction on an object.
Ice, rocks, snow, etc.
The rate at which velocity changes.
What is acceleration?
Net Force = ______ x ______
Acceleration x Mass
A baby elephant's mass is 218 kg on Earth. What would its mass be on Jupiter if the force of gravity is 2.5 times more?
218 kg
Name a reference point for somebody in a rollercoaster that would show they are in motion and not in motion.
Motion: The track, trees, other rides, etc.
Not in motion: The cart, the people in the cart, etc.
On landing, the plane touches the runway with a speed of 65 m/s. If it travels 100 meters in 5 seconds how much did it decelerate?
45 m/s2
A volleyball is hit and experiences a net force of 2 N, which causes it to accelerate at 8 m/s2. What is the mass of the volleyball?
0.25 kg
The amount of potential energy that an object has increases as it gets higher.
What is Gravitational Potential Energy?