Coulombs Law

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

Tags

NGSS.HS-PS2-4

Two charges separated by a distance of 1 meter exert a 20-N force on each other. If the charges are pulled to a 2 meter separation distance, the force on each charge will be 

• 10 N
• 5 N
• 2.5 N
• 40 N

Tags

NGSS.HS-PS2-4

A 5 C and 8 C charge give off a force of 2.5 x 10⁹ N. What is the distance between them?

• 11 m

• 12 m

• 121 m

• 144 m

Tags

NGSS.HS-PS2-4

What variable do "Newtons" represent?

• Electrostatic Charge
• Force
• Distance
• Mass

Tags

NGSS.HS-PS2-1

A 5 C and 8 C charge give off a force of 2.5 x 10⁹ N. What is the distance between them?

• 11 m

• 12 m

• 121 m

• 144 m

Tags

NGSS.HS-PS2-4

A negative charge Q₁ = -7.4 μC is located at a point X₁ = -9.0 m, a negative charge Q₂ = -9.7 μC is located at a point X₂ = -3.0 m and a positive charge Q₃ = 2.1 μC is located at a point X₃ = 1.0 m.
What is the magnitude of the force between q₁ and q₂?

• 1.79 x 10^-2 N
• 2.25 x 10^-2 N
• 2.57 x 10^-2 N
• 2.79 x 10^-2 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

Two electrically neutral metal spheres, A and B, on insulating stands are placed in contact with each other. A negatively charged rod is brought near, but does not touch the spheres, as shown in the diagram below. How are the spheres now charged?

• A is positive and B is positive.
• A is negative and B is positive.
• A is positive and B is negative.
• A is negative and B is negative.

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

A 5 C and 8 C charge give off a force of 2.5 x 10⁹ N. What is the distance between them?

• 11 m

• 12 m

• 121 m

• 144 m

Tags

NGSS.HS-PS2-4

A negative charge Q₁ = -7.4 μC is located at a point X₁ = -9.0 m, a negative charge Q₂ = -9.7 μC is located at a point X₂ = -3.0 m and a positive charge Q₃ = 2.1 μC is located at a point X₃ = 1.0 m.
What is the magnitude of the force between q₂ and q₃?

• 1.14 x 10^-2 N
• 1.25 x 10^-2 N
• 1.57 x 10^-2 N
• 1.79 x 10^-2 N

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5

A negative charge q₁ = -7.4 μC is located at a point X₁ = -9.0 m, a negative charge q₂ = -9.7 μC is located at a point X₂ = -3.0 m and a positive charge q₃ = 2.1 μC is located at a point X₃ = 1.0 m.
What does the free body diagram for q₃ look like?

• <----<-----⊕
• ⊕---->---->
• <----⊕---->
• ---->⊕<----

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-5