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- 1. Multiple Choice
A ____________ is a push or a pull on an object.frictionforcemagnetgravity - 2. Multiple ChoiceWhat is the net force?20 N0 N400 N40 N
- 3. Multiple ChoiceWhat is the unit to MEASURE force?KilogramMeterPascalNewton
- 4. Multiple ChoiceIf these teams are pulling with the same amount of force what will happen?The boy in blue will win.They will not move at all.The boy in red will win.Both will fall down.
- 5. Multiple ChoiceIf an object is not moving the forces acting upon it are _____________unbalancedweakbalancedHulk Smash!
- 6. Multiple ChoiceThis is an example of what kind of force?Balanced ForcePushing ForceGravity ForceUnbalanced Force
- 7. Multiple ChoiceWhich type of energy increases when you compress a spring?elastic potential energykinetic energyradiant energysound energy
- 8. Multiple Choice
At which point does the ball has the greatest gravitational potential energy (GPE)?
A
G
D
C
G
- 9. Multiple ChoiceWhat will happen to the potential energy of the magnets as the N and S get close?increasedecreasestay the samethere is none
- 10. Multiple ChoiceWhat will happen to the magnetic potential energy of the magnets when the N and N get close?increasesdecreasesstays the same
- 11. Multiple Choice
When does an object have no kinetic energy?
When it's at rest.
When it's moving very slowly.
When the only force that's acting on it is gravity.
When it has no electrical charge.
- 12. Multiple Choice
Which object has the most potential energy?
A ball resting on the ground.
A ball being thrown at 100 miles per hour.
A ball on top of a refrigerator.
A ball resting on the edge of a cliff.
- 13. Multiple Choice
units of force are
newtons
grams
joules
meters
- 14. Multiple Choice
What device is made of coils of wire with an electrical current passing through it in order to generate a magnetic field?
Electromagnet
Generator
Magnet
Motor
- 15. Multiple Choice
The slowly churning liquid iron core of the Earth helps to explain why the Earth...
Has an electrical field
Has gravity
Has a magnetic field
Rotates on its axis
- 16. Multiple Choice
The area of magnetic force around a magnet is known as its _____________.
magnetic field
magnetic declination
magnetic fan lines
magnetic tan lines
- 17. Multiple Choice
A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.
calculator
ruler
compass
map
- 18. Multiple ChoiceWhich way will the magnets move after they are released?Towards each otherAway from each otherNot enough information
- 19. Multiple ChoiceWhich picture has the most potential energy?Picture APicture B
- 20. Multiple Choice
An electromagnet is...
Metal that becomes a permanent magnet with electricity
Metal that becomes a temporary magnet with electricity
- Answer choicesTagsAnswer choicesTags