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- 1. Multiple Choice
Which of the following is one of the five ways an object's motion can change:
hit something
bounce off something
Speed Up
fly off the table
- 2. Multiple Choice
In order for an object to speed up, the direction of the force is:
in any direction
in the same direction as the object's motion
in the opposite direction of the object's motion
- 3. Multiple Choice
In order for an object to start moving, the force must come from
the same direction as the object's motion
the opposite direction as the object's motion
any direction
- 4. Multiple Choice
In order for an object to stop moving, the force must come from
the same direction as the object's motion
the opposite direction as the object's motion
any direction.
- 5. Multiple Choice
Which force caused the jar lid to travel faster and reach the end of the meter stick first?
the weaker force
the stronger force
both forces had the same effect
- 6. Multiple Choice
Complete the sentence to match your observations: When you exert a stronger force on an object, you will see ________ change in velocity as compared to exerting a weaker force on the same object.
a greater
a weaker
the same
- 7. Multiple Choice
Which of the following is NOT TRUE about friction:
Friction is a force that acts in the opposite direction of motion.
Friction slows objects down.
There is no friction on earth.
Friction on carpet is greater than friction on a bare floor.
- 8. Multiple Choice
A push or pull that can cause motion.
velocity
speed
cause
force
- 9. Multiple Choice
Speed in a particular direction
force
velocity
motion
- 10. Multiple Choice
Which direction was the object pushed in?
The same direction as the object's motion
The opposite direction as the object's motion
Any direction
- 11. Multiple Choice
What direction was the object pushed?
The same direction as the object's motion
The opposite direction as the object's motion
Any direction
- 12. Multiple Choice
What direction was the object pushed in?
The same direction as the object's motion
The opposite direction as the object's motion
any direction
- 13. Multiple Choice
What direction was the object pushed in?
The same direction as the object's motion
The opposite direction as the object's motion
Any direction
- 14. Multiple Choice
What is FRICTION?
a push or a pull that can change the motion of an object
a force between an object and the surface it is moving over (always the opposite direction of motion)
the energy that an object has because it is moving
- 15. Multiple Choice
Sandra pushed a wooden block and it slid across the floor. The wooden block gradually slowed down and stopped after moving 10 meters. Why did the block stop moving?
The floor exerted a force that is opposite to the direction of the block’s motion. (friction)
The block ran out of force.
- 16. Multiple Choice
The purple and white balls sped up by 4 m/s. The green ball slowed down by 6 m/s. Which ball was hit with the strongest force?
White
Purple
Green
- 17. Multiple Choice
All the skiers were hit with a force. The red skier slowed down by 6 /ms, while the yellow and purple skiers sped up by 6 m/s. Which skier(s) was hit with the strongest force?
Red
Yellow & Purple
All the skiers were hit with the same amount of force because their velocity changed the same amount.
- 18. Multiple Choice
Which object was pushed with a stronger force?
A
B
They were pushed with an equal force.
- 19. Multiple Choice
True/ False: To cause an object to SLOW its velocity, you would exert a SMALL force in the opposite direction.
TRUE
FALSE
- 20. Multiple Choice
True/ False: To make an object CHANGE DIRECTION, the object needs to be hit with a MEDIUM sized force in the opposite direction.
True
False
- 21. Multiple Choice
The GREATER the FORCE, the __________________the velocity change.
BIGGER
SMALLER
- 22. Multiple Choice
Can an object ever run out of force and stop moving?
Yes, it happens all the time!
No, the only thing that makes an object slow or stop is a force in the opposite direction.
- 23. Multiple Choice
The thruster's fire to exert a force in the ______________________ as the motion of the pod, and that causes it to stop.
same direction
opposite direction
any direction
- 24. Multiple Choice
True or False: A force is required to change the velocity of an object.
True
False
- 25. Multiple Choice
True or False: How an object changes velocity depends on the direction of the force exerted on that object.
True
False
- 26. Multiple Choice
Will the velocity of the book change as it moves across the surface with friction?
No, the book that is sliding on a surface with friction would not change velocity. It would keep moving at the same velocity because with friction, there would be no force exerted on the object.
Yes, the book that is sliding on a surface with friction will change velocity. It will slow down and eventually stop. This is because the force of friction is being exerted in the opposite direction that the book is moving, and that will cause it to slow and eventually stop.
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