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Non Contact Forces

Science

8th Grade

NGSS covered

Used 1K+ times

Non Contact Forces
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18 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following forces can push (repel) and pull (attract)?

Magnetic Force

Electric Force

Gravitational Force

Both Magnetic and Electric Force.

All Three, Magnetic, Electric and Gravitational Force.

Tags

NGSS.3-PS2-3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When two magnets repel, they ________________

change color
pull together
push apart
get colder

Tags

NGSS.3-PS2-3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The magnitude of the force of magnetism is larger between two electromagnets when ________________

the charges are both negative.

the charges are both positive.

the charges (in coulombs) are greater.

the charges are opposite.

Tags

NGSS.MS-PS2-3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Iron filings and bar magnets are placed on a piece of paper. Explain the pattern on the diagram below. Where is the magnetic field the strongest?

The magnetic field is only strong at the north pole

The magnetic field is only strong at the south pole

The magnetic field is strongest at the magnet’s poles.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move if its tip is a north pole?

Clockwise (to the right)

Counter-clockwise (to the left)

It will not move

Need more information

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

How can you increase the strength of this electromagnet?

Get a larger nail.

Add more loops of wire.

decrease the loops of wire.

Get a smaller nail.

Tags

NGSS.MS-PS2-3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The gravitational force between two objects will be very small (x 10 -11) unless which is true?

Both objects masses are very large.

One objects mass is very large.

Both objects are very far away from each other.

Tags

NGSS.MS-PS2-4

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