Position and Motion
What is the difference between distance and displacement (hint: what is it called to have "direction"?)
Distance is scalar; displacement is vector.
Define velocity.
The change in position with respects to time.
What is Newton's 1st Law?
An object at rest stays at rest, and an object in motion stays in motion unless acted on by a net force. Or the Law of Inertia
What does the slope of a position vs. time graph represents?
How many cats does Mr. Russell have?
2
A car moves from x = 3m to x = 10m. What is its displacement?
7 m
A car moves 50m east in 10s. What is the average velocity?
5 m/s east
What is inertia?
The tendency of an object to resist changes in motion. How "lazy" an object is.
What does the slope of a velocity vs. time graph represent?
Acceleration
What is Mr. Russell favorite anime?
One Piece of all time (To be Hero X currently)
A runner goes 5m east, 3m west, 4m east. What is the total distance?
A car accelerates from 0 to 20 m/s in 5s. What is its acceleration? (must include correct units)
4 m/s2
A 10 kg object experiences a net force of 20 N. What is its acceleration?
2 m/s2
A car's velocity graph is a straight horizontal line at 5 m/s. What is its acceleration? Include units.
0 m/s2
How many tattoos does Mr. Russell have? (count each panel seperately)
11
Define position in physics.
The location of an object relative to its origin.
An object moves in a circle at a constant velocity. Is the acceleration 0 m/s2? Why?
If no net force acts on a moving object, what happens?
it continues at a constant velocity.
A velocity-time graph shows a line sloping downward from 10 m/s to 0 m/s in 5 s. What is the acceleration? Include units.
-2 m/s²
What was Mr. Russell's original career?
Engineering (Electrical & Computer Engineering)
A person travels 10m north, then 10m south. What are the distance and displacement?
Distance = 20m, Displacement = 0m
Explain the difference between speed and velocity.
Speed is scalar; velocity is vector (with direction)
List three types of forces.
Any three: Gravity, friction, normal force, tension, applied, air resistance.
On a position-time graph, the line curves upward. What does this tell you about the motion?
The object is accelerating (or speeding up)
Who is Mr. Russell's favorite student?
He doesn't do favorites