Name: ______Date: ______Period: ______
Cumulative Assessment Study Guide
1. What is the line of displacement? A STRAIGHT LINE FROM THE INITIAL POSITION (START) TO FINAL POSITION (END).
2. A speedometer is used to measure what kind of speed? INSTANTANEOUS SPEED
3. What are three ways an object can accelerate?
1. INCREASE SPEED 2. DECREASE SPEED 3. CHANGE DIRECTION
4. Use the map below to answer the following questions.
a. You walk from school to the library. What are the directions between the two locations?
Travel east on Fox Street until you reach maple ave and head one block north
b. How many dimensions did you travel? 2
5. Which of the following would you NOT use as a reference point for describing the location of the parked car?
bird
Why? Because its in motion and not a stationary object
5. A turtle takes 35 minutes to travel 175 meters. What is the speed of the turtle? SHOW WORK!
S = D/T S = 175m/35 min S = 5m/min
6. What is the average speed of the following graph? SHOW WORK!
S= TD/TT S= 60km/4 h
S=15 km/h
7. What does the line in the graph above indicate? speed
8. Velocity includes speed and direction
9. If the car is traveling at a constant speed, what is that telling you? Travelling the same distance in the same amount of time.
10. Identify whether the following examples are balanced or unbalanced:
unbalanced balanced unbalanced balanced
11. How can we increase the gravitational force acting on two objects?
a. Increase mass
b. Decrease distance (bring them closer together)
12. If you push a box to the right. Which direction is the force of friction acting? Opposite to the left
13. Which type of friction acts on objects that are not in motion? Static friction
14. If you travelled to the sun your weight will change. What does not change? mass
15. When calculating net force, when forces act in the same direction we add them and when forces act in opposite directions we subtract them.
Practice Problems
1. During a race, a sprinter increases from 5.0 m/s to 7.5 m/s over a period of 1.25s. What is the sprinter’s acceleration during this period?
A = FV-IV A = 7.5m/s-5 m/s A= 2.5m/s A= 2m/s2
T 1.25s 1.25s
2. Brian has a mass of 83 kg on Earth. What is his weight?
F = M X A F = 83 KG X 9.8M/S2 F = 813.4 N
3. Gloria wanted to find out if the color of food would affect whether kindergarten children would select it for lunch. She put food coloring in 4 identical bowls of mashed potatoes. The colors were red, green, yellow, and blue. Each child chose a scoop of potatoes of the color of their choice. Gloria did this experiment using 100 students. She recorded the number of students that chose each color.
· Dependent Variable: number of children that selected it for lunch
· Independent Variable: color of food
· Constants (at least 2): bowls, mashed potatoes, one scoop, kindergarten children