Name: Date:
Quarter 1 MCAS Review:
1. A car is parked on the side of a hill. Which of the following most likely prevents the car from moving down the hill?
a. The car has too much mass to move easily.
b. There is friction in the door hinges of the car.
c. There is friction between the tires and the road.
d. The weight of the car is mostly on the front wheels.
2. Which of the following will definitely cause a change in the velocity of a parked car?
a. The car experiences an unbalanced force.
b. All forces acting on the car increase by 1 N.
c. All forces acting on the car decrease by 1 N.
d. The forces acting on the car are equal and balanced.
3. Which of the following is a vector quantity?
a. mass
b. force
c. temperature
d. kinetic energy
4. What is the mass of an object weighing 63 N on Earth?
a. 0.1 kg
b. 6.3 kg
c. 73 kg
d. 617 kg
5. How long will it take a car to accelerate from 20 m/s to 26 m/s at a rate of 1.4 m/s2?
a. 2.2 s
b. 2.7 s
c. 4.3 s
d. 4.6 s
6. The tendency of a stationary object to resist being put into motion is known as
a. acceleration.
b. inertia.
c. weight.
d. velocity.
7. A sailboat travels 35 km in 5 hr. Which of the following describes the motion of the sailboat?
a. Its momentum is 7 km/hr.
b. Its acceleration is 7 km/hr.
c. Its displacement is 7 km/hr.
d. Its average speed is 7 km/hr.
8. Which of the following must be included with magnitude to represent a vector?
a. mass
b. direction
c. acceleration
d. volume
9. A 1500 kg car increases its speed by 2 m/s for each second of travel. What is the net force acting on the car?
a. 750 N
b. 1500 N
c. 3000 N
d. 6000 N
10. The force of gravity on an object depends primarily on the object’s
a. density
b. mass
c. momentum
d. volume
11. Which of the following is certain to change as a ball accelerates?
a. mass of the ball
b. inertia of the ball
c. velocity of the ball *
d. force acting on the ball
12. The illustration below shows a car slowing down.
The car was initially traveling at 15 m/s. The car slows with a negative acceleration of 4.5 m/s2. How long does it take the car to slow to a final velocity of 4.0 m/s?
a. 0.89 s
b. 2.4 s *
c. 11 s
d. 60 s
13. Two forces act on the 2 kg box shown below.
A 4 N force acts to the right and a 6 N force acts to the left. What is the net force acting on the box?
a. 10 N to the right
b. 10 N to the left
c. 2 N to the right
d. 2 N to the left
14. The graph below relates speed and time of four cars (1, 2, 3, and 4) traveling along a straight highway.
Which two cars move with zero acceleration?
a. 1 and 4
b. 2 and 3
c. 1 and 2
d. 3 and 4
15. Which of the following arrangements will remain stationary unless an external force acts on it? Assume there is no friction.
16. A hot air balloon exerts a force of 1200 N while lifting a load of 800 N. Which free-body force diagram depicts the forces involved?
17. The distance vs. time graph below shows data collected as a remote-controlled car moved across a level parking lot.
According to the graph, which of the following conclusions about the car’s motion is supported?
a. The car is accelerating.
b. The car is stopping and starting.
c. The car is traveling at a constant velocity.
d. The car is moving through an obstacle course.
18. The forces acting on a skateboarder moving at a constant velocity along a sidewalk are shown in the figure below.
Which of the following is the net force on the skateboarder?
a. 0 N
b. 70 N
c. 670 N
d. 1270 N
19. An upward force of 150 N is applied to a box weighing 70 N. Which of the following is the free-body force diagram for this situation?
20. The graph below relates velocity to time.
The graph would most likely apply to which of the following events?
a. A soccer ball that is at rest is suddenly kicked.
b. A ball is thrown upward and returns to the ground.
c. A person who is running at a constant speed decides to run faster.
d. A car traveling at a constant speed applies its brakes and comes to a stop.
21. The graphs below show movement over time.
-Which of the graphs best represents the car’s journey? Explain your answer
22. The chart below shows the position of a car moving in a straight line.
a. Use the data in the chart to draw and correctly label a position versus time graph.
b. Based on the data in the chart, what is the average speed of the car in m/s from 0 s to 40 s?
c. Based on the graph that you have drawn, describe the acceleration of the car.
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