Question

1. Charges are accelerated by which nature phenomenon?

1. Centripetal force
2. Gravity
3. The universal gravitational force
4. Electric force

2. When two charges that have the same charge get close enough to interact with one another, what would happen?

1. The electric force would not allow them to touch
2. Gravity would pull them together
3. The proton would change to a neutron
4. The electric force and gravity would make a test charge

3. Energy is a scalar quantity… which of the following would be of the same type?

1. Displacement
2. Work
3. Heat
4. Force

4. When solving for the angle in the unit circle, what direction would you be propagating in if the angle were found to be negative?

1. Counterclockwise
2. A vertical line
3. Clockwise
4. A shape of a right triangle

Answer 1

Charges are accelerated by electric force.

Electric force do not allow to touch them if both the charges are same.

The reason for above two answers are, charges are independent of gravitational force, they only affect by electric force.

Displacement, Force is a vector quantity and heat is a form of energy which is scalar and work done is also scalar because it is dot product of two vector.

For clockwise direction, angle is measured in negative and for counterclockwise direction, it is positive.