WorksheetsEnergy
Total questions: 28
Worksheet time: 47mins
Stored energy
potential energy
kinetic energy
thermal energy
radiation energy
Stored energy from a pull to the Earth's surface
potential energy
gravitational potential energy
kinetic energy
thermal energy
Energy of motion
kinetic energy
potential energy
gravitational potential energy
radiant energy
What is the energy of a 3 kg apple that is sitting on a 4 m high tree branch?
117.6 J
9.8 J
78.4 J
12 J
3.What is the energy of a baby who weighs 10 N sitting in a high chair 2 m high?
20 J
196 J
5 J
98 J
What are types of potential energy
elastic: objects that stretch and compress
Chemical: sotred in chemical bonds
Gravitational: energy held above the Earth's surface
kinetic: energy of motion
What is the kinetic energy of a bike with a mass of 8 kg traveling at 6 m/s?
144 J
24 J
192 J
288 J
What is the mass of an object that creates 33,750 J of energy by traveling at a speed of 30 m/s?
75 kg
1125 kg
1012500 kg
50 kg
How high is a 0.75 kg squirrel sitting if it has 12 J of energy?
.92 m
1.25 m
.75 m
9 m
What is the velocity of a 500 kg elevator that has 4,000 J of kinetic energy?
4 m/sec2
8 m/sec2
16 m/sec2
2 m/sec2
energy can neither be created or destroyed
Law of conservation of mass
Law of conservation of energy
Law of conservation of electricity
Law of motion
The sum of potential and kinetic energy
electromagnetic energy
gravitational energy
mechanical energy
chemical energy
Types of energy: ight bulb, sun
(a)
Types of energy: heat from the sun or fire
(a)
Types of energy: cell phone
(a)
types of energy; noise
(a)
How much heat is needed to warm 0.072 kg of gold from 20°C to 90°C if the specific heat of gold is 136 J/kg°C?
25 J
145.25 J
34778 J
685.44 J
A force of 65 N is used to push a box along the floor a distance of 12 m. How much work was done?
5.42 J
780 J
7.82 J
650 J
250 J of work was done to lift a crate with a force of 5 N. How far was the crate lifted?
1250 m
10 m
50 m
25 m
How much power is used if a force of 80 N is used to push a box a distance of 10 m in 2 s?
400 W
800 W
200 W
100 W
A go-cart and rider have a mass of 300 kg. If the cart accelerates at 15 m/s2 during a 50 m sprint, how much work did the cart do?
90 J
100 J
225000 J
337500 J
A 25 kg rock falls from a height of 12 m and lands on a guy about 5 s later. How much power did it hit him with?
2940 W
588 W
60 W
1500 W
•amount of work done in a certain amount of time
(a)
transfer of energy that occurs when a force makes an object move
(a)
metal and skin are examples of
conductors
insulators
plastic, styrofoam, and rubber
conductor
insulator
transfer of energy by contact
conduction
convection
radiation
transfer of thermal energy by movement of particles such as water
conduction
convection
radiation
