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- 1. Multiple ChoiceRina’s mother asked her to help move some items from the hall closet to the garage. One item she wanted to move was a large box of old school books. Rina tried to lift the box, but could not pick it up. What force was Rina NOT able to overcome?frictional force
frictional forcefrictional forcegravitational forceelectrical forcemagnetic force
magnetic force - 2. Multiple ChoiceLeanna decided to rearrange her bedroom by moving her dresser to the opposite wall. She tried pushing it, but found that the dresser would not move. What force was Leanne NOT able to overcome?electrical forcemagnetic forcebalanced forcefrictional force
- 3. Multiple Choice
Magnets can be a useful tool. Look closely at the picture below which shows a magnet and various metal objects.
What will happen as the magnet moves closer to the metal objects?The magnet will attract the objects.The magnet will become heavier.The magnet will push the objects awayNothing will happen to the objects - 4. Multiple ChoiceLook at the illustration below of a block sitting on a table-top. The magnified view illustrates a force that exists between the two objects.
Which type of force is demonstrated in the magnified view?magnetic forceelectrical forcegravitational forcefrictional force - 5. Multiple ChoiceSome forces can act over a distance, and others can only act by contact. Which type of force can act only when two objects touch each other?gravitationalfrictionalelectrical
- 6. Multiple ChoiceThe illustration below shows what happened when a balloon touched a girl’s hair.
Which type of force caused the girl’s hair to cling to the balloon?magnetic forcefrictional forceelectrical forcegravitational force - 7. Multiple ChoiceAfter walking across a carpeted floor in socks, Jim brings his finger near a metal doorknob and receives a shock.
What does this demonstrate?Frictional forces require direct contact.Electrical forces require direct contactElectrical forces can act at a distance.Frictional forces can act a distance. - 8. Multiple ChoiceWhich of the following forces creates the electrical charges that form on a balloon when a person rubs it against a wool cloth?electrical forcemagnetic forcefrictional forcegravitational force
- 9. Multiple Choice
A rubber band keeps a newspaper tightly rolled because it
can be tied tightly
exerts elastic force
is unbreakable
none of the above
- 10. Multiple Choice
What happens when the stretching force on an elastic material is released?
The material breaks.
The material remains stretched out.
It does nothing
The material snaps back to its original shape.
- 11. Multiple ChoiceWhat are the units of Force?kg m/seckg mNN sec
- 12. Multiple Choice
What type of force is shown inside of the picture?
Tension
Friction
Elastic
Gravitational
- 13. Multiple ChoiceIf an object has more positive than negative charges, its electrical charge is...positivenegativeneutral or no chargeopposite
- 14. Multiple ChoiceIf an object has the same number of positive and negative charges, its electrical charge is...positivenegativeneutral or no chargeopposite
- 15. Multiple ChoiceIf an object has more negative charges than positive charges, its electrcial charge is...positivenegativeneutral or no chargeopposite
- 16. Multiple ChoiceTwo objects with LIKE static charges willattract each othereven out in the endrepel each othercause a spark
- 17. Multiple ChoiceStatic charges build up whenprotons move within an objectelectrons move within an objectneutrons move within an objectthe nucleus moves within an object
- 18. Multiple ChoiceRubbing a balloon on hair is an example of static charge build up created by....conductionfrictioninductionhairduction
- 19. Multiple ChoiceIf you rub a glass rod with a piece of silk, the rod becomes positively charged. This means thatfriction destroyed electrons in the rod.the silk has become negatively charged.protons have moved to the rod.glass attracts more protons.
- 20. Multiple Choice
A magnet cannot not move which of the following objects?
a paper clip
a nail
a toothpick
a staple
- 21. Multiple ChoiceWhat will happen when these magnets are brought close together?They will attract each other.They will repel each other.Both magnets will turn to the leftBoth magnets will turn to the right
- 22. Multiple Choice
Atoms That have a positive charge will be attracted to atoms with a ______________ charge.
positive
negative
no charge
- 23. Multiple Choice
In a magnet the opposite poles will
Attract
Repel
Neither
- Answer choicesTagsAnswer choicesTags