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
The balance point for a see-saw is called this.
What is fulcrum?
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
This is what measures the fraction of input work converted to output work, usually expressed as a percentage.
What is efficiency?
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
When a wedge is pounded into a log using a sledgehammer, the sledgehammer provides this.
What is the input force?
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
Scott has a machine with a mechanical advantage of 9.0.
He needs to apply approximately this much input force to
create an output force of 140 N.
What is 15.6 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
Igor found that the machine required 200 N of applied force to lift 100 kg of water. The mechanical advantage of the machine is this.
What is 4.9?
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.