PS Energy Force and Motion

Electric field is defined as force per charge. It is measured in units of newtons divided by ...

• watts

• coulombs

• mass

• grams

Which of the following is true about the relationship between electricity and magnetism?

• Electricity can be used to create a magnet.

• Magnetism and electricity cannot be converted into one another.

• Magnetism is based on how gravity attracts electrical energy.

• Electrical energy and magnetism cancel each other out.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

What will occur when a magnet spins within a coil of wire?

• The coil becomes a permanent magnet.

• Electricity will be produced.

• The coil will become very cold.

• The magnet will lose its strength.

Tags

NGSS.MS-PS3-5

In an electric generator, ... will increase the output of electricity.

• decreasing the turns of wire

• increasing the turns of wire

• decreasing the size of the magnet

• decreasing the speed of the spinning magnet

Tags

NGSS.HS-PS2-5

What is one way to generate a continuous electric current?

• Rub your feet against the floor to produce static electricity.

• Spin a magnet within a coil of wires.

• Wind an electric wire around a piece of metal.

• Use a lightning rod to attract a bolt of lightning.

Tags

NGSS.MS-PS2-3

Identify the correct formula for weight.

• weight = mass x force

• weight = mass x gravity

• weight = gravity x force

• weight gravity x pounds

A rocket approaching a planet is affected by the planet's gravity. Identify the rocket's most likely path.

• The rocket will be pushed away as it passes the planet.

• The rocket will pass by with no effect on it.

• The rocket will be attracted to the planet.

• The rocket will be pushed back in the opposite direction.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Identify the object that has the greatest gravitational pull.

• Tennis ball

• Sun

• Moon

• Earth

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Jupiter is much more massive than Earth. What would happen to an astronaut on Jupiter?

• The astronaut would weigh the same on Jupiter as on Earth.

• The astronaut would weigh a little less on Jupiter than on Earth.

• The astronaut would weigh more on Jupiter than on Earth.

• The astronaut would have no weight at all on Jupiter.

Tags

NGSS.MS-PS2-4

If an object is moving at a constant speed and a force pushes it in the same direction, the object will ...

• stop moving

• slow down

• accelerate

• keep moving at the same speed and direction

Tags

NGSS.HS-PS2-1