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- 1. Multiple Choice
6.8C- Which two measurements are needed to determine the speed of an object?
Position and time
Distance and time
Position and direction
Distance and direction
- 2. Multiple Choice
6.8D- During a science experiment, a student dropped a metal ball from a height of 150 m. The graph shows the distance the metal ball traveled from its initial position to where it hit the ground.
What information does the graph give you about the speed of the metal ball over time?
The ball travels at a constant speed.
The speed of the ball increases over time.
The speed of the ball decreases over time.
e speed of the ball increases at first, and then decreases as time increases.
- 3. Multiple Choice
6.8C- An airplane leaves New York to fly to Boston. It travels 1,000 km in 2 hours. What is the average speed of the airplane?
500 km
1000 hours
500 km/hour
5000 hours/km
- 4. Multiple Choice
6. 8CD- The graph below shows the distance a car traveled in 5 seconds while moving on a freeway.
What was the car’s average speed?
0 m/s
14 m/s
28 m/s
30 m/s
- 5. Multiple Choice
6.8CD- Joanna’s family drove 360 km on a trip. The graph below represents their motion.
What was the average speed during the trip?
45 km/h
60 km/h
120 km/h
180 km/h
- 6. Multiple Choice
The graph below represents the time and distance traveled by four different toy cars.
6.8CD- What was the average speed of car A?
6 ft/s
2 ft/s
3 ft/s
12 ft/s
- 7. Multiple Choice
The graph below represents the time and distance traveled by four different toy cars.
6.8C- Which car went the furthest distance (ft)?
Car A
Car B
Car C
Car D
- 8. Multiple Choice
The graph below represents the time and distance traveled by four different toy cars.
6. 8C- Which car traveled the longest amount of time (s)?
Car A
Car B
Car C
Car D
- 9. Multiple Choice
6.8A- A ball is sitting at the top of a ramp. As the ball rolls down the ramp, the potential energy of the ball decreases. What happens to the potential energy as the ball moves?
It is lost as gravitational energy.
It is destroyed as the ball moves.
It is converted to kinetic energy
It is used to make the ball slow down.
- 10. Multiple Choice
Which picture of the rock has the LEAST amount potential energy and the GREATEST amount of kinetic energy? Read the answers carefully!
Rock A
Rock B
Rock D
Rock E
- 11. Multiple Choice
6.8C- Lady Gaga is traveling uphill at 30 meters in 3 seconds. What is her speed? Speed=Distance/Time
1.5 m/s
15 m/s
10 m/s
5.5 m/s
- 12. Multiple Choice
6.8A- At what point is Mary about to transfer
Potential Energy to Kinetic Energy?
Position A
Position B
They are both the same at all places
Mary never has potential energy
- 13. Multiple Choice
6.8A- Kinetic Energy is the energy of:
Potential
Motion
Storing Energy
Fuel
- 14. Multiple Choice
Light-years is a unit of distance to measure distance in space. The Star Trek Voyager is travelling 30 light years in 3 seconds. What is its speed? SPEED=Distance/Time
10 light years/second
9.5 light years
7 light years
- 15. Multiple Choice
6.8B- A box and forces are shown below. A box rests motionless on the ground. One student is pushing the box to the right with a force of 2 Newtons. The other student is pushing to the left with a force of 5 Newtons. In which direction and with what type of speed will the box move?
It will move left
It will move to the right
It will float in the air
It will not move
- 16. Multiple Choice
6.8B- An image of a toy rocket and forces are shown below. Assuming the only two forces on the toy rocket are lift and gravity, which of the following combinations would result in the rocket moving upward?
Lift= 5 Newtons / Gravity = 5 Newtons
Lift = 3 Newtons / Gravity = 4 Newtons
Lift = 5 Newtons / Gravity = 4 Newtons
Lift = 4 Newtons / Gravity = 4 Newtons
- 17. Multiple Choice
6.8E- The diagram shows an investigation in a science classroom.
Students pulled the same mass up an inclined plane propped up on five blocks, then six, seven, and eight blocks. Each time, they use a spring scale to measure the forces needed to pull the mass up the inclined plane. This investigation can show how which of the following affects the force needed to move an object up an inclined plane?
The mass of the object
The height of the inclined plane
The length of the inclined plane
The surface area of the object
- 18. Multiple Choice
6.8E- How could students find out whether a short ramp or a long ramp would require less force to use? Measure the amount of force it takes to move —
an object up two ramps with the same height, but different lengths
an object up two ramps with equal heights and equal lengths
an object up two ramps with the same length, but different heights
one object up a ramp and a larger object up an identical ramp
- 19. Multiple Choice
If a car is moving on a highway at 70 kilometers per hour, going south, and then turns to travel 70 kilometers per hour, going east, what happens to its speed and velocity?
Speed - changing, Velocity - constant
Speed - constant, Velocity - changing
Speed - constant, Velocity - constant
Speed - changing, Velocity - changing
- 20. Multiple Choice
Which measurements are necessary for determining both the speed and velocity of a moving object?
Distance, time, and direction
Direction, displacement, and distance
Distance, direction, and acceleration
Direction, time, and acceleration
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