These are the two things needed for work to be done. (Think about the equation!)
What are force and distance?
100
This is potential energy plus kinetic energy.
What is mechanical energy?
100
A mechanic used a hydraulic lift to raise a 12,054 N car 1.890 m above the floor of a garage. It took 4.750 s to raise the car. This is the power output of the lift.
What is 4796W?
100
Sound waves require this.
What is a medium?
100
These are the equations for work and power.
What is force times distance and work divided by time?
200
A ramp, a wedge, and a screw are all part of this family of simple machines.
What is inclined plane?
200
This is the type of energy due to motion.
What is kinetic energy?
200
A box with a mass of 3.2 kg is pushed 0.667 m across the floor with an acceleration of 3.2 m/s2. This is the amount of work being done on the box.
What is 6.8J?
200
Light waves are this type of wave.
What is electromagnetic or longitudinal?
200
A roofer needs to get a stack of shingles onto a roof. Pulling the shingles up manually uses 1,549 N of force. The roofer decides that it would be easier to use a system of pulleys to raise the shingles. Using the pulleys, 446 N are required to lift the shingles. This is the mechanical advantage of the system of pulleys.
What is 3.47?
300
A seesaw, a wheelbarrow, and a boat paddle could all be examples of this type of simple machine.
What is a lever?
300
This is the type of energy stored due to gravity.
What is gravitational potential energy?
300
This is the gravitational potential energy of a 55 kg box that is 8.0 m above the ground.
What is 4312 J?
300
This mathematically helps determine the pitch (how high or low something is) of a sound.
What is the frequency?
300
A train of waves is moving at a speed of 30.0 m/s. The frequency of the waves is 10.0 Hz. This is the wavelength.
What is 3 m?
400
These are the units of work: joules, Newton-meters, kg x m^2/s^2, all of the above.
What is all of the above?
400
Energy is defined as "the ability to do" this.
What is work?
400
The efficiency of a ramp is 75.0%. If the amount of work input is 240 J, this is the amount of useful work output.
What is 180 J?
400
This is when light waves are bent while traveling through different media.
What is refraction?
400
A person in an airplane has a mass of 74 kg and has 6.6 x 106 J of gravitational potential energy. This is the altitude of the plane.
What is 9100 m?
500
This simple machine changes the input distance, helping you gain a mechanical advantage.
What is an inclined plane or ramp?
500
A machine loses kinetic energy to the environment due to friction. We say that the energy has changed from kinetic to thermal energy because of this law.
What is the law of conservation of energy?
500
This is the mechanical advantage of a ramp that is 10.0 meters long and 2.0 meters high.
What is 5?
500
When two waves overlap and the crests hit each other, this type of interference happens.
What is constructive interference?
500
A car having a mass of 654 kg has a KE of 73.4 kJ. This is the car’s speed.