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SCIENCE > FORCES/FRICTION > Flashcards

FORCES/FRICTION Flashcards

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1
Q

What is deceleration?

A

When something slows down; slows to a stop

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2
Q

What measuring unit is force measured in?

A

NEWTONS (N)

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3
Q

What length arrows would balanced forces be?

A

Same length/equal

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4
Q

What do unbalanced forces cause a change in?

A

Motion

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5
Q

Forces are unbalanced when?

A 
Starts moving 
Speeds up
Slows down
Comes to a stop 
Changes direction
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6
Q

What is the definition of Inertia?

A

The tendency to resist any change in motion

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7
Q

What is the definition of Friction?

A

The resistance that an object encounters when moving over another

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8
Q

Why is friction important?

A

— own explanation

walking
holding something

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9
Q

What is a force?

A

A push, pull or a twist

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10
Q

What’s an example for push?

A

Push a box

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11
Q

What’s an example for pull?

A

Pull a door handle

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12
Q

What’s an example for twist?

A

Twist an elastic band

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13
Q

What is the mass of an object?

A

How much matter it contains

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14
Q

What is mass measured in?

A

Kilograms (kg) or grams (g)

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15
Q

Is mass a force?

A

No

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16
Q

What is weight measured with?

A

A spring balance

17
Q

True or false

The bigger the weight attached to the spring balance, the more the spring stretches inside

A

True

18
Q

What is acceleration?

A

When sometimes moves faster; speeding up

19
Q

What can forces make things?

A 
Change shape 
Speed it up 
Slow it down 
Stay still
Moving at a constant speed (equal/balanced force)
20
Q

True or false?

The arrow points the same direction as the push or pull

A

True

21
Q

True or false?

The bigger the arrow, the bigger the force

A

True

22
Q

What’s the definition of motion?

A

The action or process of moving or being moved

23
Q

Friction can be reduced by what?

A

A lubricant

24
Q

What’s the definition of traction?

A

The adhesive friction of a body on some surface, as a wheel on a rail

25
Q

What’s the definition of lubricants?

A

A substance such as oil or grease for reducing friction

SCIENCE (4 decks)

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