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7AP Science > SQ8 Ch 8 - Forces > Flashcards

SQ8 Ch 8 - Forces Flashcards

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1
Q

What is a contact force?

A

A push or pull that is in contact with something else

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2
Q

What is a non-contact force?

A

A force that is not in contact with something else.

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3
Q

Is Friction a contact or non-contact force?

A

Contact

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4
Q

Is Gravity a contact or non-contact force?

A

Non-contact

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5
Q

Is Magnetism a contact or non-contact force?

A

Non-contact

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6
Q

Is Surface Tension a contact or non-contact force?

A

Contact

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7
Q

Is Buoyancy a contact or non-contact force?

A

Contact

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8
Q

If an object has the same amount of horizontal force in either direction, it is travelling at a _____ speed

A

Steady

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9
Q

If an object has more force heading in the direction it is travelling, it is…

A

Speeding up

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10
Q

If an object has less force heading in the direction it is travelling, it is…

A

Slowing down

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11
Q

First Class Lever is…

A

Load, Fulcrum, Effort (LFE)

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12
Q

Second Class Lever is…

A

Effort, Load, Fulcrum (ELF)

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13
Q

Third class lever is…

A

Load, Effort, Fulcrum (LEF)

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14
Q

The needle of a compass always points…

A

North

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15
Q

What is the downward force called?
|
V

A

Gravity

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16
Q

What is the upward force slowing a fall called?

|

A

Air resistance

17
Q

If a car is travelling right, what is the force that slows it down?

A

Drag

18
Q

With magnets, what happens when you try to connect a North with a North?

A

They repel

19
Q

With magnets, what happens when you try to connect two Souths?

A

They repel

20
Q

With magnets, what happens when you try to connect a North and a South?

A

They easily join together without much effort

21
Q

The needle of a compass always points…

A

North

22
Q

What is an electromagnet?

A

A type of magnet which is powered by electricity

23
Q

How do things become charged?

A

By removing or adding electrons to the atoms by friction or a non-contact force

24
Q

What is a Newton (N)?

A

The standard unit of force

25
Q

What is Mass?

A

The measure of the amount of substance in an object

26
Q

What is Weight?

A

A measure of an object being pulled down by gravity

7AP Science (6 decks)

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