Show:
Forces, Motion, Energy
Electricity and Magnetism
Miscellaneous
Waves
Sound and Light
100
Newton's first law is also known as the law of this.
What is inertia?
100
The wiring in your home uses this type of circuit.
What is parallel?
100

In what direction does a centripetal force point?

What is toward the center?

100
The distance from one point on a wave to the same point on the next wave is called this
What is the wavelength?
100
The loudness of sound is measured in units called these.
What is decibels?
200
“Forces occur in pairs” is another way of stating this Newton's law.
What is third law of motion?
200
If you connect more and more light bulbs in series to a battery, this is what happens to the brightness of each bulb as you add more bulbs.
What is the bulbs grow dimmer with each new bulb added?
200

An bowling ball is dropped from rest at a height of 5 meters above the ground.  What is the speed of the bowling ball 2.5 seconds later?  (ignore air resistance)

What is 24.5 meters/second?

200
The amount of time required for one cycle to occur is called this
What is the period?
200
The perception of sound in the human ear starts with this.
What is vibration of the eardrum?
300
Light is a form of ____ energy.
What is radiant?
300
Typically, household appliances operate at 120 volts. The current flowing in the circuit of a microwave when the resistance of the microwave oven is 30 ohms is this.
What is 4 amps?
300

A force of 6.0 newtons changes the momentum of a moving object by 3.0 kilogram∙meters per second. How long did the force act on the mass?

What is 0.50 seconds?

300
A wave whose oscillations are perpendicular to the direction the wave travels is called a ________ wave.
What is transverse?
300
The shift in frequency caused by motion (such as an object passing by) is known as this.
What is the Doppler effect?
400
If you coast down the hill on your bicycle and you accelerate at 0.5 m/sec^2 when total mass of your body and the bicycle is 80 kg, this is the net force acting on you.
What is 40 N?
400
Measured in kilowatt-hours, it would take this much energy to operate a 4,500-watt water heater element for 2 hours.
What is 9 kWh?
400

The coefficient of kinetic friction between a 250-kg crate and a level warehouse floor is 0.200.

What is the magnitude of the horizontal force required to move the crate at constant speed?

What is 490 N?

400
Sound of very high frequency, inaudible to a human ear but used by doctors to create images inside the body, is called this.
What is ultrasound?
400
Middle C on a piano has a frequency of about 264 hertz. If the wavelength in air of this note is 1.31 meters, this is the speed of the sound.
What is 346 m/sec?
500
Gwennen rides her bicycle 2.4 kilometers up a steep hill in 8 minutes. Her speed is ____ kilometers per hour.
What is 18 km/hr?
500
Materials in which each atom has a tiny magnetic field, but the north and south poles of atoms within the material are randomly arranged so that the magnetic fields cancel out, are known as this.
What is paramagnetic?
500

An 90-kilogram student climbs 5.0 meters up a rope in 4.5 seconds. What is the power output of the student?

What is 980 watts?

500
A combination of frequencies which sounds bad or is unsettling is called this.
What is dissonance?
500
If a gamma ray travels at 3 X 10^8 meters per second and has a frequency of 6.0 X 10^20 hertz. The wavelength is this.
What is 5.0 X 10^-13 meters?