A truck exerts 50N of force on a chain for 20m. How much work is done on
the chain?
1000j
What is a traveling disturbance that carries energy from one place to
another?
wave
Waves travel fastest through what type of matter?
solid
An elephant pushes a tree using 2000 J of work over 10 seconds. How much
power did the elephant have?
200w
What type of wave can be transmitted through a vacuum or space free
particles
electromagnetic
What does Q represent in the equation for Specific Heat?
heat
Convert 15 miles per hour to inches per second
264 inches
What is the kinetic energy of a 10kg ball that is rolling at a speed of 10
meters per second?
500j
You hit a baseball with a mass of .5kg. The ball leaves your bat at 80m/s.
Calculate the energy it contains.
1600j
The human perception of how much energy a sound wave carries is
Which type of matter has no definite shape or definite volume?
gas
Convert 13 feet per second to miles per hour.
86.86mph
What is the potential energy of an object that has a mass of 50kg and is
sitting at a height of 20m?
9800j
Calculate the temperature change when: 10 kg of iron loses 232 kJ of heat.
-51.56c
The 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
Convert 4.824 meters per second to kilometers per hour.
17.37km
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.
0.4477c
A cyclist travels 56 miles in 4 hours. What is the cyclist’s speed in feet per
minute?
1232
Convert 75 miles per hour to feet per second
110feet