Name
Name Date Period
Part A. Vocabulary Review
Directions: Write the terms that match each description below in the spaces provided. The boxed letters will
complete the sentence in number 13.
1. acceleration toward the center of a curved path is called ______ acceleration. CENTRIPETAL
2. occurs when an object’s velocity decreases (2 words) NEGATIVEACCELERATION
3. theory that describes movement of land masses (2 words) PLATETECTONICS
4. movement of a stationary object (2 words) RELATIVEMOTION
5. name for the slant of a line on a graph SLOPE
6. distance divided by time SPEED
7. total distance divided by total time (2 words) AVERAGESPEED
8. distance and direction of an object from its starting point DISPLACEMENT
9. product of an object’s mass and velocity MOMENTUM
10. measure of how far an object has moved DISTANCE
11. speed and direction of motion VELOCITY
12. rate of change of position at a specific point in time (2 words) INSTANTEOUSSPEED
13. The rate of change in velocity is called ___ACCELERATION______________________.
Name Date Period
Part B. Concept Review S=Speed D=Distance t=Time V=Velocity a=Acceleration
Directions: Answer the following questions on the lines provided. S=D/t Velocity has a direction
1. Compare and contrast the following. a=(final velocity-initial velocity)/time
a. distance and displacement: Displacement is an object’s distance and direction of change
b. speed and velocity: Speed is the distance travelled over time; velocity includes direction
2. Explain the difference between positive and negative acceleration.
Positive acceleration is when velocity is increasing in a forward direction while negative
Acceleration is when velocity is increasing in a backward direction.
3. What is a frame of reference?
A point from which motion is observed
4. What property of matter is momentum related to?
Mass
5. A car travels west for 240 km in 4 h. What is the car’s velocity?
60 Km per Hour West
6. An object goes from a speed of 9 m/s to a total stop in 3 s. What is the object’s acceleration?
Negative 3 meters/second per second
7. Explain how the motion of Earth’s crust is changing the oceans. (pg. 52)
The Pacific Ocean is getting smaller while the Atlantic Ocean is getting larger.
Directions: Use Figures 1a and 1b to answer questions 8 and 9.
|Figure 1a |Figure 1b |
8. Describe the motion of a car as shown by the distance-time graph in Figure 1a.
A car is travelling towards a reference point at a high rate of speed, then it stops. It then
resumes its travel towards the point at a slower rate of speed until reaching the point
9. Describe the motion of a biker as shown by the velocity-time graph in Figure 1b.
A biker slows their velocity (negative acceleration) to a slow speed and then accelerates
quickly to a higher velocity
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Unit 2 - Motion
Unit 2 - Motion
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