If an engine cannot be 100% efficient, what happens to the energy that is lost? It reproduces. It still exists, but in a different form. It disappears.

Select all of the following that are examples of kinetic energy (energy of motion). Stretched rubber band Running Osoda Child on a slide OSliding down a hill Ocooking Hammer above a nail

A load is any device that uses: Power Resistance Heat Energy Weight

1. Inductance is the property of an electronic circuit that __ a. opposes any change in the applied voltage through that circuit. b. opposes any change in the current through that circuit. c. aids any change in the applied voltage through that circuit. d. aids any change in the current through that circuit.

Which of the following describes what happens as an object falls toward Earth? Acceleration increases. Gravity disappears. Mass increases. Acceleration decreases.

The speed of a motor is determined by: 7,200 divided by the number of poles The horse power of the motor The rotor and the bearing size The number of windings in the rotor

What did Newton discover about gravity that was not known at the time? The Newtonian synthesis The equation for the force of gravity The law of universa gravitation All of the above

When a current passes through a wire: a. It is measured in resistance b. It produces a magnetic field around the wire c. It causes a voltage increase d. It can be measured in watts If the current in a wire increases, the magnetic field around the wire will: a. Increase b. Decrease c. Disappear d. Change Polarity

A load is a device that uses: a. Power b. Weight c. Outside source of cooling d. Resistance

What is the capacitance of three 100 microfarad capacitors connected in series? .30 microfarads 33.3 microfarads .33 microfarads 300 microfarads

When current passes through a conductor: A magnetic field is created The circuit is incomplete There is no voltage thru the conductor Electrons flow from the wire to the surrounding air