(Blank)
What is a traveling disturbance that carries energy from one place to another?
waves
Number of waves or cycles per unit of time is known as
frequency
Waves travel fastest through what type of matter?
solid
Which type of matter has no definite shape or definite volume?
gas
A truck exerts 50N of force on a chain for 20m. How much work is done on the chain?
1000 joules
What type of wave can be transmitted through a vacuum or space free particles?
electromagnetic waves
The human perception of how much energy a sound wave carries is
loudness
What does Q represent in the equation for Specific Heat?
heat lost or gained/transferred
What does the “c” stand for in the specific heat formula?
specific heat
An elephant pushes a tree using 2000 J of work over 10 seconds. How much power did the elephant have?
200 watts
What is the kinetic energy of a 10kg ball that is rolling at a speed of 10 meters per second?
500 joules
What is the potential energy of an object that has a mass of 50kg and is sitting at a height of 20m?
9800 joules
You hit a baseball with a mass of .5kg. The ball leaves your bat at 80m/s. Calculate the energy it contains
16000 joules
What is the distance between two successive points in a wave that are in phase?
wavelength
What waves require a medium in order to transfer energy away from their source?
mechanical waves
An unknown substance is 49.2 g. When 1150 J heat are added to the sample, the sample temperature changes by 52.2 degrees. Calculate the specific heat of the unknown metal
.448 c
Calculate the temperature change when: 10 kg of iron loses 232 kJ of heat.
51.56 c
What is the highest point of a wave?
crest
What is a long and narrow or shallow channel or depression between waves?
trough
What is the height of a wave or the maximum displacement from its resting point?
amplitude
Convert 13 feet per second to miles per hour.
8.86 miles per hour
Convert 15 miles per hour to inches per second.
264 inches per second
Convert 4.824 meters per second to kilometers per hour.
17.37 kilometers per hour
Convert 75 miles per hour to feet per second.
110 feet per second
A cyclist travels 56 miles in 4 hours. What is the cyclist’s speed in feet per minute.
1232 feet per minute