Download Chapter 9 Test Study Guide - Motion and Energy

Chapter 9 Test Study Guide - Motion and Energy
Name ________________________
Answer Bank – Answers may be used more than once and may need to be combined to answer a question
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Acceleration
deceleration
direction
distance
Energy
final
gravity
gravitational
Initial
kinetic
mass
magnitude
Mechanical
meter(s)
Potential
second(s)
Time
vector
Velocity
Work
Centidecidekahectokilomilli0.001
0.01
0.1
10
100
1000
1/4
1/2
1/8
3/4
5/8
7/8
2
4
6
8
Squared
cubed
added to (+)
minus (-)
Multiplied by (x)
Divided by (÷)
3
9.8 m/s/s
1.0 g/cm
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1. Stored energy is called ________________________ energy.
2. Negative acceleration is called ______________________
3. A kilometer is equal to ______________________ meters
4. The ability to do work is called __________________
5. A centimeter is equal to ___________________ meters
6. The metric unit for time is the _____________________
7. A vector is an arrow that shows both _______________________and ___________________________
8. The rate at which the velocity of an object changes is called ______________________
9. The formula for speed is _______________________________________________________________
10. Moving energy is called ________________________ energy.
11. A millimeter is equal to ______________________ meters
12. The metric unit for energy is the _____________________
13. The rate at which the velocity of an object changes is called ______________________
14. The formula for acceleration is __________________________________________________________
15. A hectometer is equal to _______________________ meters
16. The formula for kinetic energy is ___________________________________________
17. The formula for gravitational potential energy is ______________________________________
18. The formula for mechanical energy is _________________________________________________
19. What is the formula for weight? ____________________________________________________
20. What is the numerical value for the acceleration due to gravity on Earth? __________________
MATCH THE FOLLOWING UNITS TO THEIR APPROPRIATE QUANTITY
21. Kg _______________
h _________________
m/s _______________
22. N________________
mm ________________
Min ___________________
23. m/s/s _____________
kg*m2/s2 ________________
Km/h north ______________
24. m ________________
s _______________
N*M ___________________
25. J _________________
Km/h/s________________
g ___________________
a. distance
e. kinetic or potential energy
b. acceleration
f. velocity
c. speed
g. weight
d. mass
h. time
SOLVE THE FOLLOWING PROBLEMS. TO GET FULL CREDIT YOU MUST SHOW THE
FORMULA YOU ARE USING, THE GIVEN VALUES, THE SETUP OF THE PROBLEM, THE
CORRECT ANSWER AND THE PROPER UNITS Round off your answers to 2 decimal places
26. A car traveling at 75.5 Km/h encounters an emergency and comes to a complete stop. How much time
will it take for the car to stop if it accelerates at -6.4 Km/h/s?
27. A 325.19 Kg ball is traveling 8.24 m/s, what is its kinetic energy?
28. A cart is rolling down a hill for 7.1 seconds; it has an acceleration of 5.2 m/s2. If the cart has a beginning
speed of 3.1 m/s, what is its final speed?
29. A 75 N rock is lifted 8.2 m in the air, what is its Gravitational potential energy?
30. Suppose you ride your skateboard to the library traveling at 0.62 km/min. It takes you 23 minutes to get
to the library. How far did you travel?
31. You ride your bike for 23 minutes. You traveled 92.3 km, what is your speed?
32. Jonathan’s mother drives 18.3 km southwest to her favorite shopping mall. What is the velocity of her
automobile if she arrives at the mall in 9.7 minutes?
33. An airplane travels 6,741 kilometers in 6.3 hours. What is the airplane’s average speed?
34. After 23.5 minutes a car is traveling at 117.5 km/h, it has been accelerating at 5m/s/s, what was its initial
speed?
35. A 492 Kg ball rolling down a hill 6150 J of energy, how fast is it traveling?
36. A 83 N rock is sitting on the edge of a cliff has 70982.71 J of energy, how high is the cliff?
37. You ride your bike for a distance of 246 km. You travel at a speed of 0.47 km/ minute. How many
minutes does this take?