Science Quiz 133

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120

When the north poles of two bar magnets are brought close together, there will be?

No force

A downward force

A force of attraction

A force of repulsion

Correct! Wrong!

A keeper is used to?

Change the direction of magnetic lines

Restore lost flux

Provide a closed path for flux

None

Correct! Wrong!

Paramagnetic materials have relative permeability?

Slightly less than unity

Equal to that ferromagnetic mate rails

Slightly more than unity

Equal to unity

Correct! Wrong!

When a solenoid is activated, the force that moves the plunger is?

A steady current

Varying voltage

A permanent magnetic field

An electromagnetic field

Correct! Wrong!

The most effective and quickest may of making a magnet from soft iron is by?

Placing it inside a coil carrying current

The use of permanent magnet

Rubbing with another magnet

None

Correct! Wrong!

When the current through the coil of an electromagnet reverses, the?

Magnetic field collapses

Magnetic field expands

Direction of the magnetic field remains unchanged

Direction of the magnetic field reverses

Correct! Wrong!

An electromagnetic field exists only when there is?

An increasing current

Decreasing current

Voltage

Current

Correct! Wrong!

If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage?

Reverses polarity

Increases

Decreases

None

Correct! Wrong!

Science Quiz 133

You Failed

You weren't even close... Carry on!

Close enough!

You were even close... Carry on!

You are Genius!

You nailed it!

Science Quiz 133

When the north poles of two bar magnets are brought close together, there will be?

A keeper is used to?

Paramagnetic materials have relative permeability?

When a solenoid is activated, the force that moves the plunger is?

The most effective and quickest may of making a magnet from soft iron is by?

When the current through the coil of an electromagnet reverses, the?

An electromagnetic field exists only when there is?

If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage?

Write a Review Cancel reply

More Links

Secure Payment

Company Info

Science Quiz 133

When the north poles of two bar magnets are brought close together, there will be?

A keeper is used to?

Paramagnetic materials have relative permeability?

When a solenoid is activated, the force that moves the plunger is?

The most effective and quickest may of making a magnet from soft iron is by?

When the current through the coil of an electromagnet reverses, the?

An electromagnetic field exists only when there is?

If a loop in a basic dc generator suddenly begins rotating at a faster speed, the induced voltage?

Share:

Excavation and exploration quiz 8

Quiz on Dinosaur 10

Write a Review Cancel reply

Related Post

Why choosing a right Toy is important aspect

Science, Tech, and Fun: Why STEM Toys Are

Be an Intelligent Santa: Science Toys for a

Holiday Fun with Robotic Toys for 9-Year-Olds: Learning

Holiday Fun with Science for Kids Aged 3-5: