What is the one possible reason that "Conservation of electricity is a good idea".

How does a generator create current?

1. By using a magnet.
2. By using a fan.
3. By using energy from the sun.
4. By using heat from the oil.

Piezoelectric effect is when materials produce electric charges when:

1. Voltage is applied
2. Mechanical stress is applied
3. Electric field is applied
4. Magnetic field is applied

An object becomes negatively charged by:

1. Losing electrons
2. Gaining electrons
3. Losing protons
4. Gaining protons

Old turntables and record players used which electrical source to make music? Hint: the needle used to be a crystal.

1. Thermoelectric
2. Piezoelectric
3. Magnetomotive 
4. Chemical reaction

The piezoelectric materials used for converting energy are called_______.

1. Transition devices.
2. Converter.
3. Dielectric.
4. transducer.

If you join two different metals together and then heat the junction, it produces electricity. This is called_____.

1. Thermoelectric effect.
2. Piezoelectric effect.
3. Magnetomotive effect.
4. Chemical action.

If you squish a crystal, it vibrates and produces tiny electrical charges. This is called__________.

1. Piezoelectric effect.
2. Magnetomotive effect.
3. Thermoelectric effect.
4. Inappropriate information.

Find the odd one out:

Find the odd one out.

Which of the following is the most reactive group of non-metals?

1. Alkali
2. Alkali earth
3. Halogen
4. Noble gas

They float due to the helium's inert properties.

1. Ar
2. Ne
3. He
4. Xe

Which family contains the least reactive elements?

1. Halogens
2. Alkali gases
3. Transition gases
4. Noble gases

Noble Gases are inert because

1. They are highly reactive
2. They are unreactive
3. They are noble
4. They have completely filled outermost energy level

Which of the following is a member of the 18th group?

1. Hydrogen
2. Helium
3. Oxygen
4. Carbon dioxide

Which of the following elements is an example of Halogen?

1. Sodium
2. Magnesium
3. Fluorine
4. Carbon