Show:
General
Kinetic
Thermal
Chemical and Potential
Electrical
100
How should you use a stove. A) however you want B) with adult supervision C) you shouldn't D) all of the above
What is B with adult supervision. You should never use a stove without adult supervision. The thermal energy could burn you.
100
What contains more kinetic energy when moved at the same speed? A) large ball B) small ball C) Table D)House
What is D house. The bigger an object is the more kinetic energy it has when it is moved at the same speed.
100
What is thermal energy? A) heat B) movement C) a chemical reaction D) sound
What is a) heat. Heat is thermal energy
100
Is chemical energy good or bad?
What is both. Although chemical energy can do lots of harm if we didn't have it we would not be able to make fire which was a necessity back in the day.
100
What type of energy is stored in a battery.
What is chemical energy. Once the battery is connected in a circuit it changes into electrical. Once the circuit is complete and the energy has been transferred it changes again like a light bulb is heat and light energy.
200
How is your house wired? Is there a safer way?
What is It is wired with a parallel circuit and there is no safer way as long as it's done professionally.
200
How many of the worlds objects have kinetic energy? A)75% B)100% C)0% D)50%
What is 100%. All atoms move therefore, all objects have kinetic energy because kinetic energy is movement.
200
Is nuclear power thermal energy?
What is yes. As the atom splits it gives of heat.
200
Which contains chemical energy ? A) wood B) coal C) food D) all of the above
What is D all of the above. Wood contains chemical energy that is released when burned. Coal does the same. Food's is released when broken down by the body
200
Does a lamp contain electrical energy?
What is no. A lamp contains heat and light. The power cord contains electrical energy.
300
How much coal actually gets to your house as energy? A) 1/2 B) 1/4 C) 2/3 D) 1/3
What is 1/3. Only one third of the coal makes it to your house as energy.
300
Are potential and gravitational energy the same?
What is no gravitational energy is possessed only when above ground. Where as everything has potential energy.
300
How can we feel the heat of the sun? A) conduction B) convection C) radiation D) infection
What is C radiation. Radiation can work in space because every object gives of radiation, the hotter the object, the more radiation. No particles are involved that is why it works in space
300
How many things in our world contain potential energy?
What is 100% because everything has mass and is above ground.
300
Can electrical energy be transferred trough string?
What is yes. Think of a kite if you flew it in a thunderstorm it could kill you the string conducts it
400
How many different types of energy are there in a waterfall?
What is 3. There are hydropower, kinetic and gravitational energy.
400
Calculate the kinetic energy of a ball weighing 3g travelling at a speed of 50m per second A) 7500J B) 3250J C) 2500J D) 2503J
What is B) 3(mass) times 50 squared(speed) times 0.5 (half)= 3250J
400
How does heat spread? A) particles spread away from each other B) particles squeeze together C) particles bump in to each other D) particles jump of the object
What is C particles bump in to each other. When something heats up the particles vibrate more and bump in to each other, spreading the heat
400
Explain how if you drop a ball it won't bounce back up to the same spot?
What is the potential energy is at it's greatest when you hold the ball as it falls and bounces the force of gravity acts and pushes it back down.
400
What type of electricity is lightning?
What is static electricity.
500
Can an object have both kinetic and potential energy at the same time?
What is yes. Potential energy is energy that has not been released and kinetic is in motion. Think of a falling ball as soon as it starts to fall it has kinetic energy, but it has nt hit the ground so it still has potential energy.
500
Is the formula for kinetic energy A) mass times speed B) mass times speed squared C) mass times speed squared times half D) mass plus speed squared
What is C mass times speed squared times half
500
Which has more thermal energy. A pool heated to 30 degrees Or a cup of tea heated to 80 degrees (both Celsius)
What is a pool heated to 30. Although the tea is hotter. there is more water in a pool meaning it would take more thermal energy
500
What is the formula for potential energy? A) mass times gravity squared times height B) mass times height C) height times mass D) gravity times mass
What is B.
500
Is electricity used in your every day appliances?
What is no. It is used to power them but the energy used is usually heat or light.