Coulomb's Law

How much will force change?

100

If the distance between two particles is doubled, exactly how much will the force decrease? 

Force will decrease by a factor of 4 

200

If the charge of q_A is made 10 times stronger, exactly how much will the force increase? 

The force will increase by 10 times

300

If the charges of q_A and q_B increased by 5 times, exactly how much will the force increase by?

The force will increase 25x

400

If the distance between two particles is decreased by 4 times, exactly how much will the force increase by? 

The force will increase 16x

500

If the charge of one particle decreases by 3 times and distance also decreases by 3 times, exactly how much will the force change?  

The force will decrease 3x

Solving for F, q, or r

100

A particle with a charge of +3 C and a particle with a charge of -5 C are placed 0.5 meters apart. What is the electrostatic force between them?

-2.698x10¹¹ N

200

What is the electrostatic force between two charges, 6 C and 2 C if they are placed 2 meters apart?

5.39x10¹⁰

300

Two charges experience an electrostatic force of 15 N when placed 4 meters apart. If one charge is 4 C, calculate the value of the second charge, q_B.

q_{B =} 7.0x10^-9 or 0.000000007

400

Two particles are 10 m away from each other. If one particle has a positive charge of 6 and the other has a negative charge of -2, what type of force exists between them? 

An attractive force!

Force

100

If two particles are exerting a force that is greater than 0, what type of force is between them? 

Repulsive force

200

If a force is equal to 0, is it attractive or repulsive? 

It's neither!! It is a neutral force!

300

If force is a negative number, what can you assume about the force between the two particles?

The force is attractive

400

As distance decreases between two charged particles, the force _________________. 

Increases

Miscellaneous

100

Who was the first president of the United States?

George Washington

200

This pop star is known for hits like "Bad Romance" and "Poker Face."

Lady Gaga

300

This planet is known as the "red planet"

Mars

400

This sport is known as “the beautiful game” and is the most popular sport in the world.

Soccer

500

What is NHCS's mascot

A griffin