Basics
Kinematics
Grab Bag
Forces
Projectiles
100
A measurement without a direction.
What is a scalar?
100
is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.
What is displacement?
100
The size or amount of a vector measurement.
What is magnitude?
100
The earth exerts a force of 500 N on a person. How much force does the person exert on the earth?
500 N
100
A projectile is launched from a cannon, these are the two directions to describe the objects motion.
What is x and y? (horizontal and vertical)
200
A measurement with a direction.
What is a vector?
200
This is the meaning of slope for a position vs. time graph.
What is velocity?
200
A person has a mass of 50 kg on the moon. What is the weight of the person here on Earth?
490.5 N
200
A type of motion an object has when the forces acting on it are balanced.
What is constant velocity?
200
Find the components of this vector - 25 blocks at an angle of 25 degrees North of East.
What is 22.65 blocks East and 10.56 blocks North?
300
The degree to which several measurements provide answers very close to each other
What is precision?
300
A distance traveled over time.
What is speed?
300
Centripetal acceleration is a = (v^2)/r , rearrange to solve for r.
What is r = (v^2)/a?
300
Type of motion an object has when the forces acting on it are unbalanced.
What is a changing velocity? (acceleration)
300
Find range (horizontal displacement) for the following projectile - a basketball rolled off of the top of the bleachers which are 7 m tall with a velocity of 5 m/s.
time = 1.19 seconds & range = 5.97 meters
400
The nearness of a measurement to the standard or true value.
What is accuracy?
400
A displacement over time.
What is velocity?
400
This is what you get when you multiply mass and velocity?
What is momentum?
400
This is the number of forces acting on an object that is moving with constant velocity.
What is any number other than one? (0 counts!)
400
Find the final vertical velocity for the following projectile - Miley Cyrus is pushed off of a cliff that is 200 m tall with a horizontal velocity of 10 m/s.
time = 6.4 seconds & vertical velocity = 62.6 m/s
500
This type of relationship is shown between the following two variables. (X = 1, 2, 3, 4, 5 and Y = 1, 4, 9, 16, 25)
What is a quadratic or squared relationship? (parabola)
500
The change in velocity over time (m/s/s).
What is acceleration?
500
A roller coaster car traveling through a circular loop of radius 25 m travels at a speed of 5 m/s. If the net force on the roller coaster car is 25000 N, what is the mass of the car?
1,000 kg
500
A 4,000 kg helicopter has a lift force of 60,000 N and a weight of 40,000 N. What is the helicopter's acceleration?
5 m/s/s Up
500
Find max height - Hitler is fired out of a cannon with an initial horizontal velocity of 8 m/s and an initial vertical velocity of 12 m/s.
time = 1.22 seconds & max height = 7.3 meters