Exploration and excavation quiz 4

In 1990, a Velociraptor fossil was discovered. What was so interesting about it? Learning more with STEM toys. We will have quiz on dinosaurs to dynasties, earth surface to the earth core and everything in between. Do you know when did dinosaurs roam the earth? How are fossils formed? How large is a tyrannosaurs? How many countries are there in the world? Exploration and excavation is very interesting topic and there is so much in history to decide the future. Put yourself to the test and learn some fun facts along the way. Excavation is the action of excavating something, especially an archaeological site. Exploration is the action of exploring an unfamiliar area.

This is a timed quiz. You will be given 15 seconds per question. Are you ready?

Magnetic field lines around a bar magnet:

A. Start and end on the north pole

B. Run from north to south inside the magnet

C. Form closed loops from north to south outside the magnet

D. Are straight lines

Correct! Wrong!

In which direction does the magnetic force act on a moving charged particle in a magnetic field?

A. Parallel to velocity

B. Perpendicular to both velocity and magnetic field

C. Along the magnetic field

D. Opposite to the velocity

Correct! Wrong!

The rule used to determine the direction of the magnetic field around a conductor is:

A. Left-hand rule

B. Right-hand grip rule

C. Fleming’s right-hand rule

D. Corkscrew rule

Correct! Wrong!

What happens when two parallel conductors carry current in the same direction?

A. They repel each other

B. They attract each other

C. They create no magnetic field

D. Their magnetic fields cancel out

Correct! Wrong!

What causes a magnetic field around a wire?

A. The thickness of the wire

B. The material of the wire

C. The current flowing through the wire

D. The voltage across the wire

Correct! Wrong!

Which device works based on the magnetic action of current?

A. Electric heater

B. Electric bell

C. Thermometer

D. Digital clock

Correct! Wrong!

The magnetic field inside a long straight solenoid is:

A. Weak and irregular

B. Strong and uniform

C. Zero

D. Only at the ends

Correct! Wrong!

Which of the following correctly shows the direction of a magnetic field around a current-carrying conductor?

A. Along the direction of current

B. Opposite to the direction of current

C. In straight lines from north to south

D. In concentric circles around the wire

Correct! Wrong!

quiz on magnetic action crossing

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Exploration and excavation quiz 4

Magnetic field lines around a bar magnet:

In which direction does the magnetic force act on a moving charged particle in a magnetic field?

The rule used to determine the direction of the magnetic field around a conductor is:

What happens when two parallel conductors carry current in the same direction?

What causes a magnetic field around a wire?

Which device works based on the magnetic action of current?

The magnetic field inside a long straight solenoid is:

Which of the following correctly shows the direction of a magnetic field around a current-carrying conductor?

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