Energy

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What gives a computer power?

​Battery

• voltage: the pressure pushing electrons from one point to another.

​1 cell

​Battery converts
chemical energy into electric energy.

Multiple Choice

What is voltage (V)?

• • the pressure pushing protons from one point to another

• • the pressure pushing Nutthaphon from one point to another

• • the work pushing electrons from one point to another

• • the pressure pushing electrons from one point to another

Multiple Select

In context of battery, what is a cell?

• a single unit of device that converts chemical energy into electrical energy

• a battery

• a cell

• a hehehe

Multiple Select

Choose the batteries that are powerful, giving high voltage

• AAA

• AA

• C

• D

​Battery

• voltage: the pressure pushing electrons from one point to another.

​4 cells

connect four 1.5V cells = 1.5 + 1.5 + 1.5 + 1.5 = 6V in total

Multiple Choice

If we connect seven 1.5V cells in a serial arrangement, what is the total voltage?

• 1.5 V

• 4.5 V

• 6 V

• 10.5 V

​| ENERGY

​Type of Energy

Multiple Choice

What are two types of energy?

• Potential and kitty energy

• Potato and kinetic energy

• Potential and kinetic energy

Multiple Choice

Ability to do any work is called ...

• Entrolpy

• Energy

• End of my life

Kinetic Energy

moving objects

Multiple Choice

Which of the following is NOT mentioned as a form of kinetic energy in the provided statements?

• A) Electrical energy

• B) Thermal energy

• C) Sound energy

• D) Chemical energy

Potential
Energy

the position of objects

Multiple Choice

Two main types of the of potential energy are ...

• chemical energy and nuclear energy

• elastic energy and nuclear energy

• Nutthaphon's energy and nuclear energy

• chemical energy and Silvio's energy

Multiple Choice

The energy inside the chemical reaction of batteries is ....

• Potential
  Energy

• Dramatic Energy

• Kinetic Energy

Multiple Choice

Can energy be destroyed?

• No, due to law of energy consumption

• No, due to law of energy conservation

• No, due to law of energy conversation

• Yes, due to law of energy reduction

Multiple Choice

What is the key concept about energy?

• A) Energy can never be transformed from one form to another.

• B) Energy transformations are impossible.

• C) Energy can be transformed from one form to another.

• D) Energy transformations occur only in living organisms.

Multiple Choice

What is the unit of the energy?

• July

• June

• Joule

• Jane

Multiple Choice

what type of energy transformation occurs in a cable car (fuel -> motion)?

• Transformation from electrical energy to thermal energy

• Transformation from chemical energy to kinetic energy

• Transformation from sound energy to light energy

• Transformation from kinetic energy to electrical energy

Multiple Choice

A light bulb transforms electrical energy from the power source into what type of energy?

• A) Kinetic energy

• B) Sound energy

• C) Light energy

• D) Chemical energy

Multiple Choice

Emily throws a ball with a mass of 2 kilograms, and it goes up to a height of 4 meters. What is the potential energy of the ball when it reaches its highest point? (Given that gravity = 10)

• 8 J

• 40 J

• 80 J

• 400 J

Potential Energy

stored energy

​The higher
The heavier

The more energy

Kinetic Energy

motion

= one-half the product of its mass and the square of its velocity
= 1/2mv²

mass

​velocity

​Calorie

Kinetic Energy

Motion

Multiple Choice

If a bicycle is moving at a speed of 5 meters per second and has a mass of 10 kilograms, what is its kinetic energy?

• 50 J

• 25 J

• 125 J

• 250 J

​Eating Speed

​Eat faster = More power

​​Eat slower = Less power


Both consume the same amount of energy (calorie)

Multiple Choice

What is the specific meaning of the word "power" in science?

• A) The measure of distance traveled

• B) The amount of energy transferred per unit of time

• C) The measure of force applied

• D) The measure of work done

Multiple Choice

How is power measured in science?

• A) In watts (W)

• B) In newtons (N)

• C) In meters (m)

• D) In joules (J)

Multiple Choice

What is the relationship between joules and watts when measuring energy and power?

• A) One joule is the same as one watt.

• B) One watt is the same as one newton.

• C) One watt is the same as one joule per second.

• D) One joule is the same as one newton per second.

Multiple Choice

Which statement accurately describes the concept of power?

• A) Power measures the distance an object travels.

• B) Power is the measure of force applied to an object.

• C) Power is the rate at which energy is transferred.

• D) Power measures the work done by an object.

Multiple Choice

The company National Power is using one of the everyday uses of the word power to describe how energy is provided by electricity, such as 'My computer is powered by electricity'.

How is National Power using the word "power" in everyday language?

• A) To describe electrical units of measurement

• B) To describe the work done by electricity

• C) To indicate how quickly energy is transferred

• D) To describe how energy is provided by electricity

Multiple Choice

In a food chain, what is the primary source of energy for nearly all chains?

• A) Animals

• B) Fossil fuels

• C) Green plants

• D) The Sun

Multiple Choice

During photosynthesis, where do plants capture energy from?

• Air

• Sunlight

• Soil

• Water

Multiple Choice

What are fossil fuels formed from, according to the information?

• A) The remains of ancient civilizations

• B) The remains of animals and plants

• C) The remains of meteorites

• D) The remains of volcanic eruptions

Multiple Choice

Which source does NOT get its energy from the Sun?

• Solar panels

• Wind

• Fossil fuels

• Geothermal energy

Multiple Choice

How is wind energy primarily generated?

• By differences in temperature created by the Sun

• By burning fossil fuels

• By nuclear reactions

• By the Earth's magnetic field

Multiple Choice

In geothermal energy, what causes the generation of electricity?

• Solar radiation

• Nuclear reactions

• Heat from deep within the Earth

• Wind movements