Energy Conversion Experiments

The video tutorial covers three mandatory experiments for junior students, focusing on energy conversions. The first experiment demonstrates converting electrical energy to magnetic and kinetic energy using an electromagnet. The second experiment shows how light energy is converted to electric and kinetic energy with solar panels. The third experiment involves converting chemical energy to electric and heat energy, with a focus on measuring temperature changes using a thermometer.

What is the purpose of the experiments discussed in the video?

• To measure energy efficiency

• To explore new energy sources

• To revise energy conversion concepts

• To demonstrate energy conservation

What is the initial source of energy in the experiment involving electrical to magnetic to kinetic energy conversion?

• Nuclear energy

• Chemical energy

• Thermal energy

• Solar energy

In the electrical to magnetic to kinetic energy experiment, what is the role of the coil of wire?

• It acts as a resistor

• It becomes an electromagnet

• It generates light

• It stores energy

What is a common mistake when writing up the electrical to magnetic to kinetic energy experiment?

• Forgetting to mention the battery

• Forgetting to mention the nails being attracted

• Forgetting to mention the coil of wire

• Forgetting to mention the light bulb

What type of energy conversion occurs when solar panels are used in the experiment?

• Light to electrical

• Electrical to magnetic

• Chemical to electrical

• Kinetic to thermal

What is the final form of energy in the light to electrical to kinetic energy experiment?

• Magnetic energy

• Thermal energy

• Kinetic energy

• Chemical energy

What is the role of the fan in the light to electrical to kinetic energy experiment?

• To convert electrical energy to light energy

• To convert kinetic energy to electrical energy

• To demonstrate kinetic energy

• To store electrical energy

In the chemical to electrical to heat energy experiment, what device is used to measure the temperature change?

• Voltmeter

• Thermometer

• Ammeter

• Barometer

What is the initial energy source in the chemical to electrical to heat energy experiment?

• Magnetic energy

• Kinetic energy

• Solar energy

• Chemical energy

What happens to the wire in the chemical to electrical to heat energy experiment?

• It cools down

• It heats up

• It changes color

• It breaks