ELECTROSTATICS

When two objects have the same electrical charge they will

• Attract

• Repel

• Flex

• Contract

When two objects have different electrical charges they will

• Attract

• Repel

• Flex

• Contract

When two objects have different electrical charges they will

• Attract

• Repel

• Pop

• Create Electrictiy

Two balloons were hung on a door and then rubbed with a wool cloth.  Based on the image above, what could you conclude about the balloons and their charges?

• The balloons were attracted to each other because they had the same charge.

• The balloons were attracted to each other because they had opposite charges.

• The balloons repelled each other because they had opposite charges.T

• The balloons repelled each other because they had the same charge.

The build up of electric charges on an object is called —

• closed circuit

• alternating current

• electric field

• static electricity

During a science activity, students are told to draw the magnetic field lines for bar magnets placed side by side. Which diagram shows the magnetic field lines correctly and why?

• Diagram B; bar magnets will attract each other and magnetic field lines enter into a south pole and leave from a north pole.

• Diagram C; bar magnets will repel each other and magnetic field lines enter into a south pole and leave from a north pole.

• Diagram A; bar magnets will attract each other and magnetic field lines enter into a north pole and leave from a south pole.

• Diagram D; bar magnets will repel each other and magnetic field lines enter into a north pole and leave from a south pole.

After being rubbed on a sweater, a balloon has a higher number of electrons than protons on its surface. What type of charge does the balloon have?

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

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

The flow/movement of electric charges 

• Voltage
• Resistance 
• Current 
• Circuit 

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5