Show:
Force
Energy
Motion
Speed
Bonus
100
3. If a toy car is traveling in a straight line, slows down and then stops, you can conclude that a/an _______ force acted on the toy car causing it to stop.
outside
100
2. __________________ is the energy stored within an object due to its position, while ___________ is the energy of ___________.
potential energy kinetic energy motion
100
7. Use the graph on your review sheet. Which segment(s) is the bus stopped?
F & H
100
5. A bowling ball is rolling down the lane. What measurements do you need in order to calculate the speed of the ball?
distance & time
100
9. Use the picture on your review sheet. Which situations displays work being done? A. Johnny lifts the small container from the floor to the table B. Billy holds both containers C. Suzy is standing by the door holding the large container
A. Johnny lifts the small container from the floor to the table
200
4. A book on a desk does not fall off because the forces on the book are _________ and the book remains at rest.
balanced
200
16. Which item would have more gravitational potential energy: a book on top of a 10-foot ladder or a brick on a desk?
a book on top of a 10-foot ladder
200
18. If you know the speed of the object, what else do you need to know to determine its velocity?
The direction it is moving
200
6. Use the graph on your review sheet. Which segment is the bus traveling the fastest?
J
200
11. What stops astronauts from floating around in a space shuttle when the shuttle is on the Earth?
the force of gravity
300
1. To find the net force on an object, first you should look to see if the forces are in the ______ direction or _______ directions. If they are in the _________ direction, you should _______ the forces together. If they are going in ________ directions, you should __________ the smaller force from the larger force. The direction the object will move is in the direction of the ________ force.
same opposite same add opposite subtract larger
300
17. An airplane drops a bomb from 25,000 feet. Describe what happens with the potential and kinetic energy.
As the kinetic energy increases, the potential energy decreases.
300
19. What does the line look like on a speed-time graph when the object is not accelerating (constant speed).
a horizontal line
300
8. Use the graph on your review sheet. What is the average speed of the bus?
0.5 mi/min
300
14. Jenny oils the blades on her oscillating fan to keep it from squealing. What does the oil do the blades? A. doubles the friction B. reverses the motion C. decreases the friction D. removes all friction
C. decreases the friction
400
10. A mother is out for a walk with her baby in a stroller. She is exerting a forward force on the stroller. Friction between the wheels on the stroller and the sidewalk exert a backward force on the stroller. What can you conclude about the forces on the stroller as it moves forward?
C. The force of her push has a greater magnitude than the force of friction.
400
21. Use the roller coaster diagram in your review sheet. In which location would the roller coaster have approximately equal amounts of potential and kinetic energy?
C
400
20. Use the graphs in your review sheet. Which graph best represents Lori's motion. Lori left the party with her friend, Brenda. They walked for 5 minutes. Lori stopped for 3 minutes to tell Brenda goodbye, and resumed walking at a constant speed until she arrived home.
B
400
13. A turtle creeps 20 meters in 30 minutes. What is the turtle's speed in meters/hour?
40m/hr
400
15. What does constant speed look like on a distance-time graph?
a straight DIAGONAL line
500
12. Use the picture in your review sheet. Two forces are applied to the box. One force is three times that of the other. Which box best illustrates the MOTION of the box?
C
500
22. Use the roller coaster diagram in your review sheet. In which location would the roller coaster have maximum kinetic and minimum potential energy?
B
500
23. Use the graph in your review sheet to determine which motorcycle traveled the fastest.
A
500
24. A train travels 100 km in 30 minutes. What is the average speed of the train in km/hr?
200km/hr
500
How do you know the moon is going broke?
It's down to its last quarter!