Exam 4: Electricity and Magnetism

The product of force times parallel distance is called ______________.

The time rate of doing work is called ______________.

A student weighing 700 N climbs a flight of stairs 5.0 m high in 10 s. What power was required?

When the kinetic energy of a simple pendulum decreases, the ______________ of the pendulum increases.

Which of the following four objects has the greatest kinetic energy?

Currently, in the United States, which sector of the economy uses the most energy?

When a moving object's velocity doubles, its kinetic energy increases by a factor of ______________.

The process by which electricity can be generated by using running or falling water is known as

Which of the following is a unit of energy?

An 3000-kg car traveling at 70 m/s takes 8 m to stop under full braking. The same car under similar road conditions, traveling at 140 m/s, takes ______________ m to stop under full braking.

"Ice that burns" is better known as

A 0.10-kg ball is dropped from a height of 10 m and rebounds to a height of 8.0 m.a. Is energy conserved in the ball? b. If not, how much energy was lost, and what happened to it?

When the height of an object is doubled, its gravitational potential energy is increased by a factor of ______________.

A 5.00-kg object is lifted from the floor to a shelf. The object's new gravitational potential energy relative to the floor is 102 J. What is the height of the shelf?

The energy of a system

We define the total mechanical energy of an object as

When an 6-kg object increases its potential energy by 540 J, approximately how has its position changed?

The kinetic energy of a pendulum is ______________ at the bottom of its swing.

Currently, in the United States, which fuel has the largest consumption?

A negative potential energy may be made positive by changing the _____________ point.