[SC F2] 7.1 (A&B) Energy | Electrostatic Charges

What is energy?

• ability to resist change

• ability to do work

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Two like charges

•  neutralize each other.
• repel each other. 
• must be neutrons. 
• attract each other.

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The charge of an electron is 

• positive. 
• negative. 
• Electrons have no charge

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An atom loses an electron.  What type of charge does it have now?

• positive
• negative

An atom gains an electron.  What type of charge does it have now?

• positive
• negative
• No charge

What kind of energy is in a moving skateboard?

• Potential
• Kinetic

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How can it be explained that someone's hair can stick to a balloon?

• There is electrostatic charges.

• There is too much dust in the air.

• The person needs to wash his hair.

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Video gaming systems, like Xbox and PlayStation, and TVs need to be plugged into a socket in order for them to work. Which type of energy provides power for these systems?

• Electrical

• Thermal

• Mechanical

• Solar

What kind of energy is represented in the picture?

• Thermal
• Chemical
• Sound
• Nuclear

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When a balloon is rubbed on clothes it acquires a charge by ___________

• Induction
• reduction
• friction 
• concuction