Waves
Energy
Pressure
Calculations
Random
100
What is the distance (how high or how low) particles move from the baseline of the wave?
Amplitude
100
What type of energy transformation takes place in hydroelectric power plants?
mechanical energy (of the moving water which moves a turbine) transforms into electrical energy.
100
The basic unit used to measure pressure
Pascals
100
A pressure of 30 kPa is equivalent to what in Pa
30000 Pa
100
Water pressure ____________ with depth
increases
200
What is the time it takes for a wave to complete one cycle?
Frequency
200
Olivia is working to design a soccer ball that conserves all of its kinetic and potential energy. She drops the ball to the ground from a height of 2 meters. If it really works, how high should the ball bounce?
Exactly 2 m
200
Standard sea-level pressure is....
101.325 kPa or 1 atm
200
What is the pressure if a 40 N force is applied to an area of 8 m²?
5 Pa
200
What is the bouncing back of a light wave after it hits a surface?
reflection
300
What causes sound waves?
Vibrations
300
A student is holding a pumpkin at a height of 2 meters. The pumpkin has 50 joules of potential energy and 0 joules of kinetic energy.
The pumpkin is released from that height. How much potential and kinetic energy does the pumpkin have right before it hits the ground?
50 J Kinetic Energy and 0 J Potential Energy
300
Pressure exerted by the weight of the air above
Atmospheric Pressure
300
A wave has a frequency of 7.2 Hz and a wavelength of 4 meters. What is its speed?
28.8 m/s
300
What are waves where the particles move perpendicular to the direction of motion?
transverse
400
What type of electromagnetic wave has the longest wavelength?
Radio Waves
400
If you and a friend are going down two different slides, but the slide your friend is on is 100 ft in the air and the one you are on is 50 feet, which one of you would have more potential energy?
The one 100ft in the air
400
Snowshoes enable a person to walk on deep snow because the snowshoes,
Increase surface area, therefore decreasing pressure
400
A tank contains water at a depth of 5 meters. What is the absolute pressure exerted by the water at the bottom?
150375 Pa
400
What type of energy transformation occurs in the following scenario: A windmill spinning
What type of energy transformation occurs in the following scenario: A windmill spinning
500
What is the law of reflection?
The angle of incidence equals the angle of reflection.
500
Emma is heating three pots of water on the stove. Each pot is the same size, material, and is set to the same heating level. Each pot has a different amount of water. Which pan of water will take the least energy to bring to a boil?
The pot with the smallest amount of water will take the least amount of energy to boil.
500
Given that the air pressure outside your body is so great, why aren't you crushed?
The internal pressure of your body balances the external pressures
500
A ball reaches a max height of 40 m in the hair. What was the initial velocity it was thrown at if the mass of the ball is 2.6 kg?
28.01 m/s
500
What type of wave requires a medium to travel through
longitudinal