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- 1. Multiple Choice
A _____________ is a place or object used for comparison to determine if something is in motion.
Newton's pendulum
reference point
guiding position
motion detector
- 2. Multiple Choice
Three vehicles are traveling at the same speed in the same direction. The front of the white van is at -21 m. What is the point of reference?
A. the front of the red car
B. the front of the black car
- 3. Multiple Choice
A force is a push or pull. True or False?
True
False
- 4. Multiple Choice
Which of the following is an example of exerting a force?
a carpenter hammering a nail
an airplane soaring through the sky
a child running through a field
a train speeding down a track
- 5. Multiple Choice
Which of the following are examples of external forces?
Friction
Gravity
Surface Area Tension
All of the above
- 6. Multiple Choice
An object at rest stays at rest unless acted upon by an external force. This is an example of .......
Newtons First Law
Newtons 2nd Law
Newtons Third Law
Molecular Motion
- 7. Multiple Choice
Force is equal to mass multiplied by acceleration. This is ......
Newton's First Law
Newton's Second Law
Newton's Third Law
None of the above
- 8. Multiple Choice
A male skater and female skater are facing each other. The male skater pushes the female skater backward. Based on Newton’s third law, which sentence BEST explains what will occur?
A. The skaters will exert an equal force on each other, and neither will move.
B. When the male skater exerts a force on the female skater, she will skate forward
C. When the male skater exerts a force on the female skater, she will exert the same force on him, pushing them both backward.
None of the above
- 9. Multiple Choice
For every action there is an equal or opposite reaction. This is .....
Newton's First Law
Newton's Second Law
Newton's Third Law
All of the above
- 10. Multiple Choice
If the black car traveled from 21 m to its current position in 10 seconds, what was the the black car's average speed?
(S= D/T)
A. 2.5 m/s
B. 2.1 m/s
C. -2.5 m/s
D. -2.1 m/s
- 11. Multiple Choice
When a shark swims forward, its fins push backward against the water. What would happen if the water did not exert an equal force in the opposite direction?
A. The fish would swim faster
B. The fish would swim slower
C. The fish would not move forward
D. All of the above
- 12. Multiple Choice
Will drives west during a three-day road trip. She drives for 10 hours and stops 1000 km from San Fransico. Which correctly states the average velocity of the man's car on the second day? ( V= D/T)
A. 600 km
B. 20 km/hr
C. 150 km west
D. 100 km/hr west
- 13. Multiple Choice
During a spacewalk, if an astronaut loses his connection with the space station, he would slowly drift away from the station. Which action might help him get back to the station?
A. rolling an object away from the station
B. dropping all of his objects to reduce his weight
C. throwing a heavy object in the direction that he is floating to weigh him down
All of the above
- 14. Multiple Choice
A car is at a standstill at a stop sign. They see the speed limit in miles per hour on another sign. The car accelerates until it reaches the speed limit. What is the least amount of data needed to calculate the acceleration the car?
A. speed limit
B. speed limit and time elapsed
C. time elapsed
D. All of the above
- 15. Multiple Choice
As you walk down a hallway, what BEST explains what prevents you from sinking into the ground?
A. the speed at which you walk
B. The hallway elevation
C. the friction on the ground
D. the force that the ground exerts against your feet
- 16. Multiple Choice
Which BEST describes what would happen in this photo if Newton’s third law were not in effect, and if the wall in this photo did not exert a force against the car?
A. the wall would get larger
B. the car would not be crumpled
C. the car would be more crumpled
D. the car would stop after hitting the wall
- 17. Multiple Choice
Matt throws a ball straight up into the air. It reaches the highest point of its upward motion, turns, and falls back to the ground. At which point was the ball accelerating without changing speed?
A. at the highest point
B. when it was halfway down
C. just before it hit the ground
D. Not enough information
- 18. Multiple Choice
Which statement best describes how Newton’s third law of motion results in a problem of opening a panel in space?
A. The spaceship pushes against the panel and the panel does not push back.
B. The astronaut pulls against the panel and the spaceship moves in the direction of the pull.
C. The spaceship pushes against the astronaut floats away.
D. The astronaut pushes against the spaceship and the spaceship pushes back. So, the astronaut cannot remain in place to open the panel
- 19. Multiple Choice
What scientific research or technology helps engineers develop solutions to their problems?
A. understanding Newton’s third law
B. modeling zero-gravity environments using water
C. methods of opening and closing panels in Earth’s gravity
D. all listed are correct
- 20. Multiple Choice
How much force is going to be needed to push a Wagon that weighs 95kg while accelerating at 20 m/s^2? *
1,900 N
1.9 N
1960 N
1,705 N
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