Show:
Measurement
Motion
Forces
W,P,E
Mixed
100
What is the correct order for unit prefixes in the metric system?
Kilo, Hecto, Deka, Base, Deci, Centi, Milli
100
How do you show that an object is at a constant velocity on a velocity vs time graph?
Flat line, no slope
100
The force of friction always acts in what direction?
The direction opposite motion.
100
What is the formula for work?
Work = force x distance
100
How many seconds are there in an hour?
3600 seconds
200
What do we call the conversion method that uses fractions?
Dimensional Analysis
200
What is the only difference between speed and velocity?
Velocity has a direction
200
What is the acceleration due to gravity for all objects here on earth (ignoring air resistance)?
9.8 m/s/s
200
What is the unit associated with Power?
Watts
200
Using Newton's 3rd Law, explain the forces present when you kick the wall. What acts on what?
The wall applies a force to you and you apply a force to the wall.
300
How many dg are in 10 kg?
100,000 dg
300
Velocity is represented by?
Vectors
300
You are pushing a box across the floor, name 2 things you can do to increase acceleration (ignoring friction).
Increase force and decrease mass
300
What type of energy is due to position and not motion?
Potential energy
300
What is displacement?
Distance traveled in a straight line from the starting point
400
How many minutes are in 3 years?
65,700 minutes
400
What do we call any change in velocity?
Acceleration
400
The amount of friction between 2 objects depends on what 2 things?
Type of surface and amount of force between the objects (weight)
400
How much kinetic energy does a 2 kg apple falling from a 3 m high tree have just before it hits the ground?
58.8 J
400
Name the 3 kinds of speed
constant, instantaneous, average
500
How many kilometers are in 20 inches?
~ .00051 km
500
What are the 3 ways to change your velocity?
Speed up, slow down, change direction
500
State one of Newton's Laws and an example of how it works in real life
Latham determines correctness of answer.
500
What height does a 10 kg bowling ball fall from if it has 300 J of potential energy?
3.06 m
500
If an object's mass is 40 kg, what would the mass of the same object be on a planet where gravity is 2 m/s/s?
40 kg