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SCIENCE > Forces and speed > Flashcards

Forces and speed Flashcards

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1
Q

What is an IV (independent variable)?

A

What changes.

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2
Q

What is a DV (dependent variable)?

A

What you measure.

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3
Q

What is a CV (control variable)?

A

What stays the same.

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4
Q

What is a relationship?

A

A relationship in science is a ‘shorthand’ way of describing how variations in one part of a system affect other parts.

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5
Q

What is the mean?

A

The average.

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6
Q

Is air resistance a force?

A

Yes.

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7
Q

What does compress mean?

A

To squash into a smaller space.

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8
Q

What is friction?

A

Friction is the force that resists movement because of the contact between surfaces.

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9
Q

What is lubrication?

A

A substance that reduces the friction between surfaces when they rub together.

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10
Q

What is mass?

A

The amount of matter a thing is made up of.

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11
Q

What is a ‘Newton’?

A

The unit of force shown as N.

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12
Q

What is a newton meter?

A

Something used to measure force.

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13
Q

What is a pull?

A

A type of force.

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14
Q

What is a push?

A

A type of force.

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15
Q

What is reaction?

A

The support force provided by a solid object like a solid floor.

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16
Q

What is a streamlined shape?

A

A shape that has been

17
Q

What is water-resistance?

A

The force on an object moving through the water slowing it down, also known as drag.

18
Q

What is weight?

A

The force of the Earth on an object due to its mass.

19
Q

What must you do with the arrows in a force diagram?

A

Draw the arrows starting at the object.

20
Q

What is a plimsoll line?

A

The Plimsoll line is a reference mark located on a ship’s hull that indicates the maximum depth to which the vessel may be safely immersed when loaded with cargo.

21
Q

Who was Archimedes?

A

Archimedes was an ancient Greek philosopher, physicist, engineer, mathematician, and scientist.

22
Q

What is upthrust?

A

A force pushing upwards on an object in a liquid.

23
Q

What is thrust?

A

A push caused by an engine.

24
Q

Which direction the x Axis point?

A

Horizontal

25
Q

What do Distance-Time graphs show?

A

Speed

SCIENCE (1 decks)

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