Name__________________
Class/Period_____________
Physics
Physics Test & Notebook Collection – Motion Unit
Monday, October 21st
Format
25 Multiple Choice
5 Problem Solving
2 Graphical Interpretations
Vocabulary
1. Acceleration
2. Average Speed
3. Constant Acceleration
4. Free-Fall
5. Terminal Velocity
6. Gravity
7. Frame of Reference
8. Linear Motion
9. Motion
10. Position
11. Constant Speed
12. Speed
13. Instantaneous Speed
14. Average Speed
15. Time
16. Linear Relationship
17. Exponential Relationship
18. Inverse Relationship
19. Velocity
20. Slope
Study Suggestions
1)
2)
3)
4)
5)
Notes/Reflectives
Problem Solving Questions #’s 1-6
Labs
Motion Quiz
Study Guide Questions
Motion Unit - Physics Test Review Guide
1) What are the four forces of flight?
2) Explain the difference between center of gravity and center of lift.
3) Explain what a R2 value shows between variables.
4) Name three independent variables that we changed on our paper airplanes.
5) Name the dependent variable from our paper airplane testing.
6) What is the difference between speed and velocity?
7) Describe all the possible ways an object can accelerate?
8) How are velocity and acceleration related to one another?
9) How do you tell the units for velocity and acceleration and speed apart?
10) What is the acceleration of gravity on earth?
11)What happens to the speed of a cart traveling down an inclined plane? What would a
graph of this motion look like?
12)What happens to the acceleration of a cart traveling down an inclined plane? What
would a time/distance graph of this look like?
13) Draw distance, velocity and acceleration graphs for an object in free fall.
14) Draw distance, velocity, and acceleration graphs for an object with constant speed.
15)What is the speed of an object traveling 450km in 208 min. in km/hr?
Givens
Formula
Calculations
16)What distance has an object traveled in 6s at a constant speed of 9m/s?
Givens
Formula
Calculations
17) How long will it take a car to travel 40miles going 65mph?
Givens
Formula
Calculations
18) What is the acceleration of an object that starts from rest and accelerates to 37mph
in 7s?
Givens
Formula
Calculations
19) What is the acceleration of a bike that slows down from 8m/s to a stopped position in
1 minute?
Givens
Formula
Calculations
20)What is the average speed of a runner who goes 5 miles in 38 minutes, stops to rest
for two minutes, and then goes 2 more miles in 15 minutes?
Givens
Formula
Calculations
21) Draw a time/distance graph of the story above (in 20) and calculate the runner’s
speed during parts one and three of his run.
22) What kind of graph represents speed? Acceleration? BE ABLE TO DO THESE BOTH!
23) What is meant by “freefall” acceleration?
24)What is the name of the force that causes an object in freefall to accelerate?
25)What force works against gravity during freefall?
26)What does “terminal velocity” mean? When does an object reach terminal velocity?
27) Which object would reach the ground first, a bowling ball or a ping pong ball dropped
from 10m? Explain your answer.
28)How would the speed of a tennis ball dropped from 1m compare to the same tennis
ball dropped from 10m? How would their accelerations compare?
29)Name and explain the four steps of problem solving.
30)Jostens wants to present different yearbook formats (DVD, internet based, printed) of
yearbooks for high school students to choose from. Explain the steps of problem
solving that would be used – with basic detail pertaining to this problem.
31)Use the following data to make a distance/time graph and a velocity/time graph.
Biker
Biker
Biker
Biker
starts out traveling east at 10 m/s for 20 seconds.
stops for 30 seconds
travels west at 5 m/s for 20 seconds
stops
Motion Unit - Physics Test Review Guide
1) What are the four forces of flight?
Lift – pushes up
Gravity – pulls down
Thrust – pushes forward
Drag – pushes against thrust
2) Explain the difference between center of gravity and center of lift.
COG is where the plane balances due to the weight of the plane
COL is where the plane balances due to lift from the wings
3) Explain what a R2 value shows between variables.
R2 shows how well the data matches a trendline. R2 of 1 is a perfect match.
4) Name three independent variables that we changed on our paper airplanes.
Angle of Attack, Mass, COG
5) Name the dependent variable from our paper airplane testing.
Distance the plane flies
6) What is the difference between speed and velocity?
Velocity includes a direction, both include distance over time
7) Describe all the possible ways an object can accelerate?
Speed up, slow down, change direction
8) How are velocity and acceleration related to one another?
Acceleration is the change in speed over time,; in other words, how fast does the
velocity change.
9) How do you tell the units for velocity and acceleration and speed apart?
Velocity will have a distance over a time
Acceleration will have a distance over two time units – m/s2 or mph/s
10) What is the acceleration of gravity on earth?
Gravity is 9.8m/s2
11)What happens to the speed of a cart traveling down an inclined plane? What would a
graph of this motion look like?
A car going down a ramp will accelerate, so the speed will increase
12)What happens to the acceleration of a cart traveling down an inclined plane? What
would a time/distance graph of this look like?
Acceleration is constant
13) Draw distance, velocity and acceleration graphs for an object in free fall.
14) Draw distance, velocity, and acceleration graphs for an object with constant speed.
15)What is the speed of an object traveling 450km in 208 min. in km/hr?
Givens
D=450 km
T=208 min
V=?
Formula
V=D/T
Calculations
V=450 km/208 min
V=2.16 km/min X60min/hr
V=129.81 km/hr
16)What distance has an object traveled in 6s at a constant speed of 9m/s?
Givens
T=6s
V=9m/s
D=?
Formula
V=D/T
D=V*T
Calculations
D=9m/s * 6s
D=54 m
17) How long will it take a car to travel 40miles going 65mph?
Givens
D=40 mi
V=65 mph
T=?
Formula
V=D/T
T=D/V
Calculations
T=40 mi / 65mph
T=.62 hr
T=36.92 min
18) What is the acceleration of an object that starts from rest and accelerates to 37mph
in 7s?
Givens
Vo = 0 m/s
Vf = 37 mph
T = 7s
A=?
Formula
A=(Vf-Vo)/T
Calculations
A=(37 mph – 0 mph)/7s
A=5.29 mph/s
19) What is the acceleration of a bike that slows down from 8m/s to a stopped position in
1 minute?
Givens
Vo = 8 m/s
Vf = 0 m/s
T = 1 min
A=?
Formula
A=(Vf-Vo)/T
Calculations
A=(0 m/s – 8 m/s)/1 min
A= -8 m/s/min *1min/60s
A= -.18 m/s2
20)What is the average speed of a runner who goes 5 miles in 38 minutes, stops to rest
for two minutes, and then goes 2 more miles in 15 minutes?
Givens
D1 = 5 mi
T1 = 38 min
D2 = 0
Formula
Calculations
V = Total Distance/Total Time
V = 7 mi/55 min
V = .13 mi/min
T2 = 2 min
D3 = 2 mi
T3 = 15 min
21) Draw a time/distance graph of the story above (in 20) and calculate the runner’s
speed during parts one and three of his run.
D1 = 5 mi
T1 = 38 min
D3 = 2 mi
T3 = 15 min
V1 = D1/T1
V3 = D3/T3
V1 = 5 mi/38 min
V1 = .13 mi/min
V3 = 2 mi/15 min
V3 = .13 mi/min
22) What kind of graph represents speed? Acceleration? BE ABLE TO DO THESE BOTH!
Speed graph is distance versus time (formula V=D/T)
Acceleration is velocity versus time (formula A=V/T)
23) What is meant by “freefall” acceleration?
Falling without including wind resistance
24)What is the name of the force that causes an object in freefall to accelerate?
Gravity
25)What force works against gravity during freefall?
Wind Resistance
26)What does “terminal velocity” mean? When does an object reach terminal velocity?
Terminal velocity is the maximum speed something get to while falling.
Terminal velocity is reached when the force from gravity pulling down and the
force of wind resistance pushing up are the same (in equilibrium). At this time
there will be no more change in velocity
27) Which object would reach the ground first, a bowling ball or a ping pong ball dropped
from 10m? Explain your answer.
Bowling ball will reach the ground first because is has less wind resistance
compared to its mass. (not just heavier!)
28)How would the speed of a tennis ball dropped from 1m compare to the same tennis
ball dropped from 10m? How would their accelerations compare?
Givens
Formula
Calculations
Vo = 0 m/s
A=(Vf-Vo)/T
9.8 m/s2 * 1s =( Vf – 0 m/s)
Vf = ?
A*T=(Vf-Vo)
9.8 m/s = Vf
T1 = 1s
9.8 m/s2 * 10s =( Vf – 0 m/s)
T2 = 10s
98 m/s = Vf
A1 = ?
A2 = ?
They both have the same acceleration
29)Name and explain the four steps of problem solving.
Identify the problem – restate the problem in your own words so you really know
what you are trying to solve
Brainstorm possible solutions – as many as possible, wide variety of ideas
Choose one solution and implement it – make it and test it
Evaluation (feedback) – look at what worked and what didn’t, what else could
this be used for?
30)Jostens wants to present different yearbook formats (DVD, internet based, printed) of
yearbooks for high school students to choose from. Explain the steps of problem
solving that would be used – with basic detail pertaining to this problem.
Identify problem – state this in your own words
Brainstorm – find ways to present – TV ad, school presentation, etc.
Implement solution – choose what you think is best option and do it
Evaluation – how did it work
31) Use the following data to make a distance/time graph and a velocity/time graph.
Biker starts out traveling east at 10 m/s for 20 seconds. (D=V*T, D=10m/s*20s, D=200m)
Biker stops for 30 seconds.
Biker travels west at 5 m/s for 20 seconds. (D=V*T, D=-5m/s*20s, D=-100m)
Biker stops.
Distance (m)
distance vs time
300
200
distance
100
0
0
50
100
150
Time (seconds)
Distance (m)
Velocity vs time
15
10
5
0
-5 0
-10
Series1
50
100
Time (second)
150