The firecracker has chemical potential energy that is released when it is ignited. This energy is changed to kinetic energy after the firecracker explodes, causing the cans to move.
What is the energy transformation in fireworks?
When fireworks explode, chemical energy is transformed into thermal energy, mechanical energy, radiant energy, and sound energy.
What kind of energy transformation is occurring?
The change of one form of energy to another form of energy is called energy transformation. Energy can change forms in many different ways. Energy conversions occur continually in living things.
|Initial Energy Type||Final Energy Type||Example|
|Thermal energy||Kinetic energy||Steam turbine|
Which kind of energy is required to ignite when the cracker explodes?
Answer: The chemical energy stored in the cracker is converted into radiant energy (the light), acoustic energy (the sound) and thermal energy (the heat).
When a firecracker explodes stored chemical energy turns into sound and light energy what other type of energy is also released during this transformation?
Some of the chemical energy stored in the fireworks is converted to kinetic energy to send the rocket skyward; some compresses the air rapidly, producing sound and still more energy is transformed into light of many colours.
What types of energy can be transformed into electrical energy?
Chemical Energy is converted to Electrical Energy (stove), Kinetic Energy (car), Electricity (power plant), and Mechanical Energy (space shuttle). Electrical Energy is converted to Kinetic Energy. Electricity is converted to Light (light bulb) and Sound and Light (TV).
Which energy transformation occurs in an electric iron?
In the iron, electrical energy is used, and it is transformed into heat energy.
Which type of energy transformation is performed in an ice?
kinetic energy to heat energy.
How much energy is in a firecracker?
A typical firework has about 200 grams of black powder (or other lifting charge). Black powder when burned typically releases 3 Megajoules per kilogram of energy. If we estimate about 20,000 fireworks this gives a grand total of 12 billion joules.
What happens when a firecracker explodes?
When this fuse, called a fast-acting fuse, is ignited with a flame or a spark, the gunpowder explodes, creating lots of heat and gas that cause a buildup of pressure beneath the shell. Then, when the pressure is great enough, the shell shoots up into the sky. Fireworks!
Which type of change is explosion of fire cracker?
Explosion of a cracker is a chemical change because the explosive reactants are transformed into gaseous products along with heat, light and sound which cannot be reversed. Hence, it is a chemical change.