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The force of gravity...

• Always attracts

• Can attract or repel

• Always repels

• Does not attract or repel

Electric force...

• Always attracts

• Can attract or repel

• Always repels

• Does not attract or repel

On which planet does the astronaut have the MOST weight?

• Planet A

• Planet B

• Planet C

• The astronaut has the same weight on all three planets

On which planet does the astronaut have the MOST mass?

• Planet A

• Planet B

• Planet C

• The astronaut has the SAME mass on all three planets

What happens to the force of gravity (Fg) when mass increases?

• Fg increases

• Fg decreases

• Fg stays the same

What happens to the force of gravity (Fg) when the distance (r) increases?

• Fg increases

• Fg decreases

• Fg stays the same

If an object's mass is 10 kg and it is on a planet whose gravity is 2 m/s/s, what is its weight?

• 5 N

• 20 N

• 20 kg

• 5 kg

What types of charges attract?

• Positive and Positive
• Positive and Neutral
• Negative and Neutral
• Positive and Negative

As two oppositely charged particles approach each other, what happens to the electrical force between them?

• The attractive force increases

• The magnitude of the electric force decreases

• The repulsive force increases

• The magnitude of their charges increases

The Electric Force is strongest when charges are...

• close together
• far apart
• the electric force is constant everywhere