006. Fields and Capacitors

What name is given to a field where all field lines are parallel and evenly spaced?

• uniform
• radial
• circular
• random

What name is given to a field where all field lines point towards a central point

• uniform
• radial
• circular
• random

Gravitational fields lines point in which direction?

• the direction a small mass would travel
• the direction a large mass would travel
• left
• down

what is the maximum potential an object in a gravitational field could have?

• 0
• infinite
• 12
• Large, not ifinite

At what point in a gravitational field does an object have 0 potential

• at infinity
• at the centre of the feld
• on the surface of the earth
• 12

How does the gravitational potential of a rocket change as it is launched?

• Increases towards zero
• increases beyond zero
• decreases to zero
• 12

Which is a definition of gravitational potential at a point in a field

• the energy needed to move 1kg from infinity to that point
• the energy needed to get to that point
• the energy lost when moving to that point from infinity
• 12

What is NOT true when a satellite travels on an equipotential line

• it requires no energy to continue moving
• the potential is constant
• it gains energy constantly

What was Kepler's first name

Who proved Kepler's third law using forces?