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- 1. Drop Down
An object at rest will remain (a) and an object in motion will remain (b) unless an outside force acts on the object.
at restin motionat a constant speedin an unbalanced state - 2. Multiple Choice
BalancedUnbalanced - 3. Multiple ChoiceBalancedUnbalanced
- 4. Multiple ChoiceBalancedUnbalanced
- 5. Multiple Choice
Which of the following correctly describes a system with a net force of 0N?
The system would be balanced, therefore the object would move
The system would be balanced, therefore the object would not move
The system would be unbalanced, therefore the object would move
The system would be unbalanced, therefore the object would not move
- 6. Multiple Choice
What is the unit for force?
Joules (J)
seconds (s)
Newtons (N)
meters (m)
- 7. Multiple Choice
A bus travels 20 km in 30 minutes. What is the average speed of the bus?
20 km/hr
30 km/hr
40 km/hr
My answer choice is not listed because I didn't remember to change minutes to hours!!!!!!!
- 8. Multiple Choice
A bicycle rider is traveling up a hill. When the rider reaches the top of the hill, she stops to rest. Then she travels down the hill. The diagram shows the rider in the three different positions.
Which of these correctly describes the potential energy and the kinetic energy of the bicycle rider?
When the rider is at the top of the hill, her potential energy is the greatest, and her kinetic energy is the least.
As the rider moves up the hill, her kinetic energy increases, and her potential energy decreases.
When the rider goes down the hill, her potential energy increases, and her kinetic energy decreases.
As the rider reaches the bottom of the hill, her kinetic energy and her potential energy decrease.
- 9. Open Ended
Is this Balanced or Unbalanced?
What is the Net Force?
What is the Direction of the Force?
- 10. Open Ended
Is this Balanced or Unbalanced?
What is the Net Force?
What is the Direction of the Force?
- 11. Open Ended
Is this Balanced or Unbalanced?
What is the Net Force?
What is the Direction of the Force?
- 12. Open Ended
Is this Balanced or Unbalanced?
What is the Net Force?
What is the Direction of the Force?
- 13. Multiple Choice
What is inertia?
Objects changing their motion on their own.
Objects moving in a straight line.
Objects staying still when they are acted on by a force.
Objects not changing motion unless acted on by an unbalanced force.
- 14. Multiple Choice
A book sits still on a table. What forces act on the book?
Gravity pulls down and the table pushes up.
Only gravity pulls down.
Gravity pulls down, the table pushes up, and friction keeps it still.
Gravity pulls down and inertia keeps it still.
- 15. Open Ended
Explain how seatbelts in a vehicle demonstrate one of Newton's laws of motion. (Must include which of the law's and be in complete sentences to recieve full credit)
- 16. Open Ended
Explain your results from our car and ramp lab. How does this demonstrate one of Newton's Laws? (must include which law and be in complete sentencecs to receive full credit)
- 17. Multiple ChoiceWhich object has the greatest inertia?A 1-kilogram object moving at 15 meters per secondA 5-kilogram object at restA 10-kilogram object moving at 2 meters per secondA 15-kilogram object at rest
- 18. Multiple ChoiceWhat is the net force?5000 N right4000 N right40 N left4000 N left
- 19. Multiple ChoiceA 20 kg bike accelerates at 10 m/s2. What was the force?25 Newtons20 Newtons200 Newtons10 Newtons
- 20. Multiple ChoiceA change in velocity over time is called ___________.speedforceaccelerationdirection
- 21. Multiple ChoiceHow much force is needed to accelerate a 2 kg physics book to an acceleration of 6 m/s/s?36 N12 N3 N0.33 N
- Answer choicesTagsAnswer choicesTags