Name ______Date______Period ______
Review Sheet/Study Guide for Force & Motion Test
Test Date: ______
X______I verify that my student has studied a minimum of 30 minutes for the Force & Motion Unit Exam.
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Part 1: Measuring Motion
1. What is the math formula used to calculate AVERAGE SPEED? ______
2.
Make a LINE GRAPH above to show the speed of a cockroach over time. Plot POINTS where the following distances and times meet, then connect the points to make a line.
Distance / Time10 meters / 5 seconds
30 meters / 10 seconds
45 meters / 15 seconds
80 meters / 20 seconds
4. If speed = distance ¸ time, what is the speed of the cockroach after 5 seconds? ____
10 seconds? ______15 seconds? ______20 seconds? ______
5. Fill in the blanks with the words “accelerates”, “decelerates” or “constant speed”
______What happens to the speed of the cockroach between 5 and 10 seconds
______What happens to the speed of the cockroach between 10 and 15 seconds
______What happens to the speed of the cockroach between 15 and 20 seconds
6. In 5 minutes, you ride your bike 265 meters toward the north.
What is your average speed while riding your bike?______
What is your velocity?______
7. What is the difference between speed & velocity?
Part II: What is a Force?
Use your notes and/or textbook to define the following terms and answer the questions that follow.
8. Force— A ______or ______
9. Newton—The ______in which force is measured or expressed
10. Net force-The ______of all forces being exerted on an object.
11.When finding net force, forces that are in the SAME direction should be ______while forces in DIFFERENT directions should be ______.
pulling pushing
48 N left 40 N left
12. What is the net force shown in the picture above? ______.
13. In what direction will the box move?______.
14. If net force is equal to ZERO, then forces are ______.
15. If net force is NOT equal to ZERO, then forces are ______.
Part III: Friction
Use your notes and/or textbook to define the words below and to answer the questions that follow:
16. Friction—a force that ______(slows) motion
17. Fill in each blank below with either the word MORE or the word LESS to make each statement true:
A. Rougher surfaces create ______friction than smoother surfaces.
B. More friction causes ______motion, while less friction allows ______motion.
C. Objects with greater surface area have ______friction than objects with less surface area.
18. Explain how a ball rolling on a carpet is affected by friction.
19. A water skier pulls on a rope and is dragged by a
motorboat. Which of the following diagrams illustrates
the forces of friction acting on the water skier?
A.
Skier Boat pulling skier
B.
Friction with Skier Boat pulling skier
the water
C.
Friction with Skier Boat pulling skier
the water
D.
Friction with Skier Boat pulling skier
the water
20. The table below shows the time measured for 2 different types of wooden blocks to slide down an inclined plane.
Shape of Block / Mass / Surface Area / TimeSquare / 10 g / 4 inches / 3 seconds
Rectangular / 10 g / 8 inches / 6 seconds
Why did it take the rectangular block longer to slide down the inclined plane?
______
______
Part IV: Line Graphs
21. On a speed graph what does a horizontal line represent?______
22. On a speed graph, what label goes on the x axis?: ______
What label goes on the y axis?: ______
Look at the graph above to answer questions 23-25.
23. How far had the object traveled at 3pm? ______
24. What time was it once the object traveled 60 km? ______
25. Describe the motion from point B to point C. ______
Use the graph below to answer questions 27-29.
26. The graph above shows distance-time data for various objects. What can be concluded from the data in the graph?
a. The graph of the fastest-moving object is steepest.
b. The racecar is traveling the fastest.
c. The graph of the slowest-moving object is the steepest.
d. The horse and the eagle are traveling at the same speed.
27. According to the graph above, which of the objects traveled the furthest distance?
a. the cruising jet
b. the galloping horse
c. the wheelchair racer
d. the flying eagle
28. Did any of the objects stop to take a break? (yes or no) How do you know?
Use the graph to the right to answer questions
29-32. Choose from the following words:
Accelerating, Decelerating, or Not Moving.
29. Describe the object’s movement from Point A
to Point B. ______
30. Describe the object’s movement from Point B
to Point C. ______
31. Describe the object’s movement from Point E to point F.
______
32. Between what two points is the object traveling the fastest? ______
Part V: Simple Machines
33. A pulley is used to help lift heavy objects. What does the pulley change?
a. The amount of energy required to lift an object
b. The amount of force required to lift an object
c. The direction of the force required to lift an object
d. The mass of the object
34. An inclined plane helps move objects to different heights. How does the inclined plane do this?
a. Decreases the distance needed to move an object
b. Decreases the amount of work needed to move an object
c. Decreases the amount of motion needed to move an object
d. Decreases the amount of force needed to move an object
Part VI: Newton’s Laws
Match each example with one of Newton’s Laws.
Law: Examples:
______1. An object at rest stays at rest; an a. An empty wagon moves faster than a
object in motion remains in motion with the same wagon full of potatoes when equal
direction and at the same speed. force is applied.
______2. If you exert the same force on an b. When a rocket’s exhaust fumes push
object, you will get different accelerations. down, the rocket moves up.
______3. For every action there is an equal c. A soccer ball is kicked, rolls to the
and opposite reaction. sideline, then comes to a stop.