A solenoid with a ferromagnetic core is called a circuit.

a. True

b. False

Which term compares an objects mass to its volume

The intensity of light from a star varies inversely as the square of the distance. If you lived on a planet ten times farther away from the sun than the Earth, how would the light intensity of the sun compare with that on Earth?

Describe the motion of particles in a material when the ultrasound wave passes through

Most of the energy consumed in the U. S. is stored in which form of energy

Steve hears a siren emitting a frequency of 10 kHz when it is at rest. What frequency will Steve hear if the siren moves toward him at 30 m/s? Assume the speed of sound is 340 m/s. Answer options are: a. 11 kHz b. 10 kHz c. 0 kHz d. 9 kHz

All group I metals react with H2O to a form a metal hydroxide and hydrogen gas. Which of these will react the fastest?

In transverse waves, the medium moves perpendicular to the direction of energy transport. true false

A horse is running at 12m/s accelerated to 38m/s in 10 seconds. What is the horses acceleration.

If you ride your bicycle down a straight road for 500 m then turn around and ride back your distance is your displacement a. Greater than b. Equal to c. Less than d. Cant determine

What are some of the physical and human made features that map symbols can represent