Download Force and Motion Study Guide 1. What is motion? What do we use to

Force and Motion Study Guide
Name: _________________________________
1. What is motion? What do we use to help us determine if an object is in motion?
Motion is the action or process of moving or of changing place or position. A place or object (reference
point) is used for comparison to determine if an object is in motion.
2. Write the formula for speed. Calculate the speed of an object that has traveled 42 meters in 12 seconds.
Speed = Distance/ Time S=42/12
S= 3.5m/s
Name: _________________________________
Force and Motion Study Guide
18. Label Positive, Negative, and constant acceleration on the graph below.
A. Positive
B. Negative
C. Constant
3. What is velocity?
D. Positive
Velocity is speed in a given direction.
4. What is a force? What unit do we use to measure force?
Force is a push or pull. We measure force in Newtons (N).
5. How does each type of force affect the motion of an object?
a. Balanced forces: Equal forces in each direction. There is no change to the motion (or acceleration)
of the object.
b. Unbalanced forces: Unequal forces acting on an object. There is change in motion
(acceleration/deceleration).
6. When looking at a graph of motion, what does the slope of the line tell us?
The slope tells us if the object is accelerating, moving at a constant speed or not moving at all.
7. What is acceleration? What unit do we use to measure acceleration? What are the three ways that
acceleration can happen?
Acceleration is the rate at which velocity changes.
The unit used to measure acceleration is meters/seconds/seconds or m/s2
Acceleration can happen when there is an increase in speed, decrease in speed or change in direction.
8. _______________ forces maintain motion at constant velocity. Balanced
9. _______________ forces acting on an object produce accelerated motion. Unbalanced
10. __________ is the tendency of an object to resist change in its motion. Inertia
11. To increase acceleration, one could decrease __________. mass/friction
12. A push or a pull, are both known as __________. forces
13. What is Net force? How we do draw an object with 50N of force pushing from the right and 20N of force
pushing from the left?
Net force is the overall force acting on an object.
20N
50N
Use the graph to answer the following questions:
14. Name the two variables plotted in the graph. Distance and
Time
15. Describe the object’s motion. Traveling at a constant speed
16. What is the distance traveled in three hours? 75 miles
17. What is the average speed the object traveled during the
entire four hours? S=d/t 100/4 = 25mph
19. In what direction is the net force acting on the box?
To the right
20. What does the head of the arrow indicate?
The direction the force is moving the object
21. In what direction must a force be applied to balance the
forces?
To the left
22. If you apply a third force in a downward direction, how will
the acceleration change?
It will move down and to the right