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WorksheetsAll About Energy
Total questions: 21
Worksheet time: 2hrs 45mins
How does thermal energy flow?
a. Thermal energy only flows between objects that are the same temperature
b. Thermal energy does not flow between substances
c. Thermal energy flows from an object with more thermal energy to an object with less thermal energy
d. Thermal energy flows from an object with less thermal energy to an object with more thermal energy
Heat moves between two substances until they both reach the same temperature. What is this process called?
Conduction
Convection
Radiation
Thermal Equilibrium
What happened to the temperatures of the hot water and cold water from 0 hours to 4 hours?
a. The thermal energy of the hot water decreased and the thermal energy of the cold water increased
b. The thermal energy of the hot water increased and the thermal energy of the cold water decreased
c. The thermal energy of the hot and cold water increased
d. The thermal energy of the hot and cold water remained the same
What was the approximate temperature of the hot water after 30 minutes?
a. 135° F
b. 125° F
c. 95° F
d. 85° F
The graph below shows the temperatures, taken at one-minute intervals, once a newly made 400˚C metal horseshoe was dropped into a pail of water. The water had an initial temperature of 20oC. Use the graph to answer any questions that follow.
If no outside sources, such as the temperature of the air or pail, affect the energy transferred between the horseshoe and water, then, based on the graph, the –
A. temperature of the water and horseshoe stop changing at approximately 29°C.
B. final temperature of the horseshoe will be 400˚C.
C. temperature of the water and horseshoe stop changing at approximately 20°C.
D. final temperature of the horseshoe will be 20°C
The graph below shows the temperatures, taken at one-minute intervals, once a newly made 400˚C metal horseshoe was dropped into a pail of water. The water had an initial temperature of 20oC. Use the graph to answer any questions that follow.
Assuming the surrounding environment had no effect on the transfer of thermal energy, when the horseshoe was put into the water, thermal energy moved from the -
horseshoe to the water, until the horseshoe reached the starting temperature of the water.
water to the horseshoe, until they both reached the same temperature
horseshoe to the water, until they both reached the same temperature.
water to the horseshoe, until the water reached the starting temperature of the horseshoe
What is an energy resource?
a. An object that is used to destroy energy
b. Substances that are used to locate fossil fuels
c. Objects that require energy
d. Substances that can be used as sources of energy
The pie chart below shows all of the renewable energy used to generate electricity for the United States in 2012. Use the pie chart to answer any questions that follow
Wind energy forms 27.0% of the United States’ renewable energy and has many advantages and disadvantages. Which of the following is NOT a disadvantage of wind energy?
It requires coal to be burned in order to make the wind turbines spin
It produces large amounts of sound pollution when the wind turbines spin.
It only produces energy when the wind is blowing.
It requires many large turbines to produce enough energy.
Which type of thermal energy transfer exists when your doctor takes an x-ray of your body?
Conduction
Convection
Radiation
none of the above
The provided table shows the properties of four different sample materials. A student has a substance with a density of 1.28 g/cm3. Which sample does the student have?
Sample 1
Sample 2
Sample 3
Sample 4
A car uses the force of friction from its brakes to slow down, which causes the brakes to heat up. As the car slows down-
A. mechanical energy from the moving tires is converted to thermal energy.
B. electrical energy from the brakes is converted into mechanical energy.
C. thermal energy from the moving tires is converted to mechanical energy.
D. thermal energy from the brakes is converted to electrical energy.
During which action is a large amount of mechanical energy converted to thermal energy?
A. burning a candle
B. sanding wood
C. turning on a light
D. baking a cake
This appliance dries clothes primarily by converting –
electrical energy to heat and mechanical energy
mechanical energy to heat and electrical energy
electrical energy to heat and light
mechanical energy to heat and vaporization
A cook heats a meal in a microwave oven. What energy transformations occur between the microwave oven and the meal?
electrical -> Light -> Chemical
Chemical -> Thermal -> Light
Electrical -> electromagnetic -> Thermal
Chemical -> Electromagnetic -> Chemcical
The picture below shows the Hoover Dam, which channels the Colorado River through turbines that can produce up to 2,080 megawatts of electrical power.
Hydroelectric plants, similar to the Hoover Dam, are a good way to retrieve energy for all the following reasons EXCEPT-
for the lack of carbon dioxide emissions.
for this energy source’s ability to sustain itself
for the abundance of power they can produce.
for the ecological impact they cause at the dam site
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon.
What energy transformations occur when the propane gas is used to lift the balloon?
Mechanical -> Light -> Chemical
Chemical -> Mechanical -> Thermal
Thermal -> Chemical -> Light
Chemical -> Thermal -> Mechanical
What percentage of the energy used in the United States came from burning the remains of plants and animals?
46.3%
6.0%
23.6%
88.5%
The picture below shows a gasoline-fueled car driving on a roadway. Use the picture to answer any questions that follow.
Energy from the car’s fuel may be transformed into all of the following EXCEPT -
electrical energy, as the generator in the car charges the battery.
chemical energy, as the wheels press and move tightly across the road.
thermal energy, as the engine heats up.
kinetic energy as the car speeds up.
The picture below shows a gasoline-fueled car driving on a roadway. Use the picture to answer any questions that follow.
Energy from the car’s fuel may be transformed into all of the following EXCEPT-
electrical energy, as the generator in the car charges the battery
chemical energy, as the wheels press and move tightly across the road.
thermal energy, as the engine heats up.
kinetic energy as the car speeds up.
A balance and a graduated cylinder are used to determine the density of a mineral sample. The sample has a mass of 14.7 g and a volume of 2.2 cm3. What is the density of the mineral sample?
0.15 g/cm³
32 g/ cm³
13 g/cm³
6.7 g/cm³
What is a major disadvantage of coal, natural gas, and biomass?
All three forms of energy contaminate groundwater during the fracturing process.
All three forms of energy destroy habitats during the mining process
All three forms of energy release carbon dioxide when burned.
All three forms of energy are nonrenewable energy sources.
