the basics
kinematics
Newton's
momentum
Free body
100
What are the steps of the scientific method?
100
What is acceleration?
Change in velocity
100
State Newton's first law
An object in motion stays in motion, an object at rest, stays at rest
100
A 200 lb football player collides with a 100 lb training block. Which undergoes a larger change in momentum?
Same
100
Draw a free body diagram of a 2 Kg football in free fall. Show the forces on the object.
19.8N down. arrow down
200
What are dependent and independent variables?
Dependent = what is measured
Independent = what the experimenter changes
200
An object that is in free fall moves at a constant velocity
False. it accelerates at 9.8 m/s/s
200
State Newton's 2nd law
F=ma
200
A 200 lb football player collides with a 100 lb training block. Which undergoes a larger change in force?
Same. Newton's 3rd
200
draw a free body diagram of a .1 Kg coffee cup sitting at rest on a table.
.98N up and down
300
Give an example of a hypothesis
varies
300
What is a vector?
Magnitude and direction!
300
State Newton's 3rd law
For every action there is an equal and opposite reaction
300
A 200 lb football player collides with a 100 lb training block. Which undergoes a larger change in impulse?
Same
300
Draw a free body diagram of a 200 Kg refrigerator being pushed along a floor with a constant velocity of 20 m/s
1960N up and down. No right or left arrow (constant velocity)
400
Convert 1500 ml to Km
.0015
400
OKC is 80 miles away. If it takes 120 minutes to get there, what is your average speed in MPH?
40 MPH
400
A golf ball rolls off the edge of a table at 10 cm/s. As it falls, what happens to the horizontal component of its velocity?
It stays the same
400
A 200 lb football player collides with a 100 lb training block. Which undergoes a larger change in acceleration?
The block
400
What force is required to slide a 3 Kg hockey puck across the ice at a rate of 2.0 m/s2
6N
500
How many significant figures are there in 3001.0
5
500
If you travel 5 Km north, then 3 Km east. What is magnitude of your displacement?
4 km
500
An airplane moves at 152 km/h toward the northeast (55 degrees). What is its component velocity in the northward direction?
125 km/h
500
A 8 kg object has a momentum of 24 kg•m/s. The object's speed is ___ m/s
3 m/s
500
What is every Chick-fil-a employee required to say to customers?
"My pleasure!"