Science - Electrically Charged Objects Day 3

Electrically Charged Objects - Day 3

SC.5.P.10.3 Investigate and explain that an electrically charged object can attract an uncharged object and can either attract or repel another charged object without any contact between the objects.​

​Attraction and Repulsion

Electrically charged objects can attract an uncharged object, without any contact between the objects. Evidence for this was in the video you just watched. In that video, Mr. Ted was able to move a wooden match without touching it.​

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One match was balanced on a coin. Another match was hanging from a string inside a glass container. The matches were uncharged: they had no electrical charge. Mr. Ted used a PVC (plastic) pipe to move the match. To charge the pipe, Mr. Ted rubbed the pipe in one direction with a wool glove. This produces an electrical charge.​

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he PVC pipe became electrically charge, and was able to cause motion in the uncharged wooden match. This evidence supports the claim that electrically charged objects can attract (pull) an uncharged object without any contact between the objects.

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Multiple Choice

A force that pushes objects away from each other

• electrical charge

• attraction

• force

• repulsion

Multiple Choice

A pull or push of an object

• force

• electrical charge

• static electricity

• tug of war

Multiple Choice

A force that draws or pulls objects toward each other

• static

• repulsion

• attraction

• magnetism

Multiple Select

This is an example of

• static electricity

• attraction

• two things with similar/like charges

• two things with opposite charges

Multiple Choice

Similar or like charges _______________.

• get bigger

• attract

• repel

• get smaller

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​This illustration demonstrates the attraction between objects with the same charge. The positive + charge of the wall attracts (pulls) the opposite negative ‐ charge of the balloon on the left. The balloon on the left also has a positive charge, which repels (pushes) the positive charge of the balloon the right. This is easy to remember: opposites attract, so likes repel.

Multiple Choice

Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.

• The balloons will attract each other.

• The balloons will become positively (+) charged.

• The balloons will pop.

Multiple Choice

If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?

• A positive charge.
• A negative charge.
• A neutral charge
• No charge at all

Multiple Choice

During a lab a balloon was rubbed with a wooly fabric. This is an example of which type of charging?

• conduction

• friction

• induction

Multiple Choice

Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

• The balloons will repel each other.
• The balloons will attract each other.
• The balloons will become positively (+) charged.
• The balloons will pop.

Multiple Choice

Which type of charge moves from one object to another to cause static electricity?  

• Atom
• Proton
• Electron
• Neutron

Multiple Choice

What is the difference between a conductor and an insulator?

• An insulator allows electricity to flow through it easily and a conductor does not
• A conductor allows electricity to flow through it easily and an insulator does not.
• An insulator is magnetic and a conductor is not
• A conductor is magnetic and an insulator is not

Multiple Choice

A student on the playground turned around in time to see a ball which had been mistakenly kicked toward her. She wanted to stop the ball from hitting her, but didn’t want to have the ball hit anyone else, either.   Which of the following would be the BEST way for the student to stop the ball from hitting her without it hitting anyone else?

• Step out of the way and let the ball hit her friend.

• hit the ball softly to make the ball stop

• Hit the ball as hard as she can.

• duck