Chapter 8- Forces Flashcards Preview

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Flashcards in Chapter 8- Forces Deck (11)
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1
Q

Contact Force

A

When one object comes in contact with another object

2
Q

No contact force

A

The motion and shape of objects can be changed without touching them with anything

3
Q

Gravity

A

The force of gravity pulls down

4
Q

Force

A

A force is a push or pull in a particular direction 3 examples:
Opening a door
Opening a pencil case
Pushing a button.

5
Q

Permanent Magnets

A

Magnets that retain their magnetism when removed

6
Q

Domains

A

Domains are tiny compartments that are within an object, Magnetised objects are organised, non magnetised is when objects are jumbled up and unorganised.

7
Q

Electromagnet

A

An electromagnet is a coil of wire wrapped around an iron coil

8
Q

Mass

A

A measure of the amount of material in an object of substance

9
Q

Weight

A

A measure of the size of the gravity force pulling an object towards the centre of a massive body

10
Q

Buoyancy

A

A force which keeps objects floating

11
Q

Surface Tension

A

The firmness of a surface of a liquid