Which of the following statements about electric and magnetic forces is TRUE?

Both electric and magnetic forces can be attractive.

Magnetic forces can be repulsive, but electric forces cannot.

Electric forces are not affected by distance, but magnetic forces are.

Magnetic and electric forces do not interact.

What would be good evidence to support your claim?

The car stops and the wheel starts moving.

The car keeps moving and the wheel starts moving.

The car speeds up and the wheel stops moving.

The car and wheel are moving at the same speed before and after.

How can we protect our drinking water to keep it clean and safe for everyone?

Educate others and ourselves about how our daily activities can cause contamination.

Throw away trash and chemicals into rivers and lakes

Avoid recycling empty containers

Pour harmful substances down the drain

Which of the following human activities can contribute to water contamination?

Dumping motor oil into a storm drain

Planting trees along riverbanks

Reducing the use of plastic products

Properly disposing of household chemicals

How is it most commonly done to make water safe for drinking by removing contaminants?

By using a special filter to catch and remove impurities

By adding more contaminants to neutralize them

By stirring the water quickly to get rid of contaminants

By exposing the water to sunlight for a few minutes

Which of the following is a natural way water can become contaminated?

Heavy rainfall washing soil into a stream

Adding chlorine to a swimming pool

Spilling a can of paint into a river

Emptying household cleaning products into a pond

Why is it important to monitor what's in our school's drinking water?

To ensure the water is safe for consumption

To reduce the cost of water bills

Potential energy is the energy:

Released during a chemical reaction

What is the primary purpose of a water filtration system?

To remove impurities and contaminants

Semester 1 Exam Review

Authored by Tiffany Grove

Science

7th Grade

NGSS covered

Used 3+ times

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60 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The ability to do work or cause change.

Heat

Generator

Energy

Speed

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

To pull toward (N/S on a magnet or +/- on an electric charge)

Attract

Repel

Divide

Charge

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Temporary magnet made by passing an electric current through a wire coiled around an iron bar

Heat magnet

Thermal magnet

Generator

Electromagnet

Tags

NGSS.MS-PS2-5

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Energy of motion

Potential energy

Kinetic energy

Thermal energy

Electric energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Energy that is stored due to an object's position

Potential Energy

Kinetic energy

Thermal energy

Electric energy

Tags

NGSS.MS-PS3-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Flow of electrical energy

Magnetism

Electricity

Heat

Convection

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A machine that converts mechanical energy into electrical energy

Furnace

Eradicator

Generator

Purifier

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Semester 1 Exam Review

The ability to do work or cause change.

To pull toward (N/S on a magnet or +/- on an electric charge)

Temporary magnet made by passing an electric current through a wire coiled around an iron bar

Energy of motion

Energy that is stored due to an object's position

Flow of electrical energy

A machine that converts mechanical energy into electrical energy

The force of attraction or repulsion of magnetic materials

A measure of the amount of matter in an object

Distance traveled per unit time

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