What is the definition of polar?

when covalent molecule doesn't share electrons evenly

when a molecule can be dissolved in water

when a covalent molecule does share electrons evenly

when a molecule cannot be dissolved in water

What should you do if during an outdoor activity you hear thunder?

peak out and find safe shelter.

Wait until the event organizers tell you to leave.

Until you see lightning it's okay.

Objects that have opposite charges

are attracted to each other, and the force between the objects pulls them together.

are attracted to each other, and the force between the objects pushes them apart.

are repelled by each other, and the force between the objects pulls them together.

are repelled by each other, and the force between the objects pushes them apart.

If you are unable to get to a safe location, do this as a last resort for your own safety:

crouch into lightning pose on an insulated pad

keep having your outdoor adventure regardless of the risk

Read this quotation ''Between 1,500 and 2,00 thunderstorms are crackling and booming around the world at this very moment... Why does the author use the words "crackling and booming" instead of "occurring" ?

to help the reader imagine the sounds of thunderstorms

to help the reader experience the speed of lightning

to be clear about the electrical nature of lightning

to be accurate about how common thunderstorms are

Thunder will not occur ___________ .

in wintertime storms when it is too cold

until precipitation begins to fall from the clouds

What should you do to ensure an accurate mass measurement when using a balance?

Calibrate the balance before use

Place the balance on a vibrating surface

Weigh the container before adding the liquid

What happens to particles when you add energy to a substance?

The particles move faster when the temperature increases

The particle decrease there speed

Fewer particles are in a given space at low temperature

What is one of the potential consequences of increased ice melt from the Greenland Ice Sheet?

A rise in global sea levels contributing to coastal flooding

A decrease in global sea levels

A reduction in global temperatures

An increase in sea ice extent in the Arctic

What is the primary concern for astronauts when it comes to staying hydrated in space?

the absence of gravity makes liquids difficult to drink.

Spacecraft air conditioning makes liquids evaporate

Water is freely available in space through natural sources

Astronauts do not need to drink water in space.

Why do astronauts wear spacesuits during a space mission?

To keep their body temperature regulated and protect against extreme temperatures.

To improve their ability to move and perform tasks in space.

To prevent exposure to harmful radiation.

Practice 2

Authored by Paul Amaechi

Science

12th Grade

NGSS covered

Used 1+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

During which of the following processes can electrons be transferred from one object to another?

Conduction

Induction

Friction

Radiation

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following methods involves charging an object without direct contact?

Conduction

Radiation

Friction

Induction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary method of charging when rubbing a balloon on your hair?

Conduction

Induction

Radiation

Friction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which process involves the movement of electrons through a material?

Radiation

Friction

Induction

Conduction

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where in the world is lightning most frequent?

Polar regions

Desert regions

Equatorial regions

Temperate regions

According to Coulomb's Law, if the distance between two charged particles is halved, what happens to the force between them?

It doubles

It quadruples

It halves

It stays the same

What happens to the electric field strength if the charge is doubled while the distance remains constant?

It stays the same

It quadruples

It halves

It doubles

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Practice 2

During which of the following processes can electrons be transferred from one object to another?

Which of the following methods involves charging an object without direct contact?

What is the primary method of charging when rubbing a balloon on your hair?

Which process involves the movement of electrons through a material?

Where in the world is lightning most frequent?

According to Coulomb's Law, if the distance between two charged particles is halved, what happens to the force between them?

What happens to the electric field strength if the charge is doubled while the distance remains constant?

Which of the following is a result of static electricity?

Which material is a good conductor of electricity?

How many hydrogen atoms does each water molecule have?

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