Which of the following is not a characteristic of a good conductor of electricity?

Ability to carry electric current

What is the purpose of an electric circuit diagram?

To show the flow of electric current in a circuit

To show the types of materials used in a circuit

To show the size of the circuit components

To show the voltage of the circuit

What is the heating effect of electric current?

The ability of electric current to produce light

The ability of electric current to produce magnetism

The ability of electric current to produce heat

The ability of electric current to produce sound

What is an electric fuse?

A device that measures the voltage of an electric circuit

A device that increases the voltage of an electric circuit

A device that protects an electric circuit from overloading

A device that converts AC current to DC current

What is the magnetic effect of electric current?

The ability of electric current to produce light

The ability of electric current to produce magnetism

The ability of electric current to produce heat

The ability of electric current to produce sound

What is an electromagnet?

A type of magnet that is only attracted to certain metals

A magnet that is always magnetic

A magnet that can be turned on and off by an electric current

A magnet that can only be turned on by heat

What is an electric bell?

A device that produces light when an electric current flows through it

A device that produces sound when an electric current flows through it

A device that measures the voltage of an electric circuit

A device that increases the voltage of an electric circuit

What is the function of the phloem in plants?

To transport water and minerals

To transport sugars and other organic compounds

What is the difference between a series circuit and a parallel circuit?

A series circuit has only one path for electric current, while a parallel circuit has multiple paths

A series circuit has multiple paths for electric current, while a parallel circuit has only one path

A series circuit has a higher voltage than a parallel circuit

A parallel circuit has a higher current than a series circuit

What is the function of the circulatory system in animals?

To transport nutrients and oxygen to the cells

To remove waste products from the body

What is the difference between a permanent magnet and an electromagnet?

A permanent magnet is created by passing an electric current through a coil of wire, while an electromagnet is always magnetic

An electromagnet is created by passing an electric current through a coil of wire, while a permanent magnet is always magnetic

A permanent magnet can be turned on and off by controlling the flow of electric current, while an electromagnet is always magnetic

An electromagnet can be turned on and off by controlling the flow of electric current, while a permanent magnet is always magnetic

What is the function of the nervous system in animals?

To control and coordinate bodily functions

To transport nutrients and oxygen to the cells

To remove waste products from the body

What is the difference between AC current and DC current?

AC current flows in one direction only, while DC current flows back and forth

AC current flows back and forth, while DC current flows in one direction only

AC current has a higher voltage than DC current

DC current has a higher current than AC current

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	Class 7 Oxford Science: Chapter Notes, Worksheets & Tests 140 videos\|108 docs\|18 tests

	Class 7 Oxford Science: Chapter Notes, Worksheets & Tests 140 videos\|108 docs\|18 tests

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