You pull into a gas station and fill up your car with gasoline. During the time you are filling up, the car has

A) kinetic energy only. B) potential energy only. C) both potential and kinetic energy. D) neither potential or kinetic energy.

A Mack truck and a Volkswagen traveling at the same speed have a head-on collision. The vehicle to undergo the greatest change in velocity will be the A) Volkswagen. B) Mack truck. C) both the same.

Two identical parallel-wired strings of bulbs are connected to each other in series. if the equivalent resistance of the combination is 130 ohms when it is connected across a potential difference of 120 volts, what is the resistance of each

As you increase current, what happens to the strength of an electromagnet?

A lightning flash may transfer up to 14 C of charge through a potential difference of 107 V How much energy does this involve? For how long in minutes does this energy light a 100 W bulb?

An Iowa class warship holds the record for the fastest warship. If the ship accelerates uniformly from rest at 0.15 m/s² for 2 minutes, what is its final velocity in km/h?

A force between two objects?

Two iron rods are placed horizontally, touching end-to-end. One end of one rod is heated. After some time, the other rod also feels warm to touch.

Which part of the motor is responsible for reversing the flow of current?

In a generator, as the magnet spins, opposite poles of the magnet push the electrons in opposite directions. This back-and-forth movement of electrons is called what? A) revolutions per minute B) direct current C) alternating current.

A train travels at a speed of 30 miles/hour and traveled a distance of 240 miles. How long did it take the train to complete its journey?