Waves
What is a traveling disturbance that carries energy from one place to another?
waves
Which type of matter has no definite shape or definite volume?
gas
Convert 13 feet per second to miles per hour.
8.86 mph
You hit a baseball with a mass of .5kg. The ball leaves your bat at 80m/s. Calculate the energy it contains.
1600 J
A truck exerts 50N of force on a chain for 20m. How much work is done on the chain?
work
Waves travel fastest through what type of matter?
solids
What does Q represent in the equation for Specific Heat?
amount of heat transferred
Convert 15 miles per hour to inches per second.
246 in/sec
What is the kinetic energy of a 10kg ball that is rolling at a speed of 10 meters per second?
500 J
A cyclist travels 56 miles in 4 hours. What is the cyclist’s speed in feet per minute?
14 mph
Number of waves or cycles per unit of time is known as ____.
frequency
What does the “c” stand for in the specific heat formula?
specific heat capacity
Convert 4.824 meters per second to kilometers per hour.
17.3664 km/h
What is the potential energy of an object that has a mass of 50kg and is sitting at a height of 20m?
9800 J
What type of wave can be transmitted through a vacuum or space free particles?
electromagnetic waves
10.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.
0.448 J/g °C
Convert 75 miles per hour to feet per second.
110 ft/sec
An elephant pushes a tree using 2000 J of work over 10 seconds. How much power did the elephant have?
200 W
The human perception of how much energy a sound wave carries is ____.
loudness
Calculate the temperature change when: 10 kg of iron loses 232 kJ of heat.
-51.67 °C