Physics electrostatic charge

What is the unit of electric charge?

• Volts
• Amps
• Coulombs
• Ohms

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NGSS.HS-PS2-4

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What are the two types of charges that objects may possess?

• + and +
• + and -
• + and neutral 
• - and neutral 

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NGSS.HS-PS2-4

What is it called when an object gains a charge when touched by a charged object?

• Induction
• ESD
• Conduction
• Conducting path

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NGSS.HS-PS2-4

What is it called when an object gains a charge without touching a charged object but by being held near the charged object?

• Induction
• ESD
• Conduction
• Conducting path

A cloth has a positive charge and can attract some paper scraps when held near them, what kind of charge can the paper scraps NOT have?

• Positive
• Negative
• Neutral 

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NGSS.MS-PS2-3

A balloon is rubbed against a student’s hair and then touched to a wall.
The balloon “sticks” to the wall due to 

• electrostatic forces between the particles of the balloon 
• magnetic forces between the particles of the wall 
• electrostatic forces between the particles of the balloon and the particles of the wall
• magnetic forces between the particles of the balloon and the particles of the wall 

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NGSS.HS-PS2-4

A perspex rod can be charged positively by rubbing it with a woollen cloth.
How does the rod gain its charge? 

• The rod loses electrons.
• The rod gains electrons. 
• The rod gains protons.
• The rod loses protons. 

Tags

NGSS.HS-PS1-3

NGSS.HS-PS3-5

Use the diagram to answer the question. A person received an electrical shock when reaching for the metal doorknob. The shock was caused by the  

• A high number of electrons on the doorknob
• A discharge of an imbalance of electrons
• A highly conductive surface of the doorknob
• A low resistance of the person’s skin

What is static electricity?

• electricity produced by like electric charges attracting
• electricity used for powering radios and televisions
• a buildup of balanced electric charges
• a buildup of excess electric charge

The law of conservation of charge states that _____.

• the mass before a chemical change equals the mass after
• charge can be created and destroyed but not transferred
• electric charge is not created or destroyed
• charge is not created or destroyed or transferred to objects

Tags

NGSS.HS-PS2-5