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Chap Flashcards

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1
Q

Different types of waves

A

Pulling force Frictional force
Pushing force Weight force
Air resistance force Electrical force
Applied force Magnetic force
Gravitational force Normal force (reaction force)
Tension force

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2
Q

How do particles gain energy to move around?

A

From heat(kinetic energy)

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3
Q

How does diffusion happen?

A

When particles move from an area of high concentration to low concentration, they diffuse.

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4
Q

G force

A

Gravitational force

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5
Q

Transverse waves

A

Waves that travel in a swaying line

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6
Q

How does light move?

A

In longitudinal waves

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7
Q

What is the protective layer on the front of you eye?

A

The cornea

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8
Q

What goes right at the back of your eye?

A

The retina

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9
Q

What sends the images from the eye to the brain

A

The optical nerve

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10
Q

Contact force

A

A contact force is any force that requires contact to occur.Pushing a car up a hill or kicking a ball or pushing a desk across a room are some of the everyday examples where contact forces are at work.

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11
Q

Non-contact force

A

A non-contact force is a force which acts on an object without coming physically in contact with it. The most familiar example of a non-contact force is gravity, which confers weight. In contrast a contact force is a force applied to a body by another body that is in contact with it.

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12
Q

Force diagram

A

In physics and engineering, a free body diagram is a graphical illustration used to visualize the applied forces, movements, and resulting reactions on a body in a given condition. They depict a body or connected bodies with all the applied forces and moments, and reactions, which act on the body.

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13
Q

Interaction pairs

A

These two forces are called action and reaction forces and are the subject of Newton’s third law of motion. Formally stated, Newton’s third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.

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14
Q

Newtons

A

Newtons are a unit to help measure strength or tension.

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15
Q

Newton metre

A

A Newton metre is a utensil used to measure Newtons.

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16
Q

Deform

A

To make something miss happen or to make something go out of shape.

17
Q

Compress

A

If you compress something you increase its density.

18
Q

Reaction force

A

The opposing force lets say in gravity that keeps you from plummeting through the ground.

19
Q

Extension

A

If you extend something you make it longer.

20
Q

Elastic limit

A

If you stretch a rubber it’s elastic limit is when it stops stretching.

21
Q

Hooke’s Law

A

Hooke’s law: force = spring constant × extension. This is when: force (F) is measured in newtons (N).

22
Q

Balanced force

A

Balance forces are two forces acting in opposite directions on an object, and equal in size.

23
Q

Unbalanced force

A

Balanced forces do not cause a change in motion. When balanced forces act on an object at rest, the object will not move. If you push against a wall, the wall pushes back with an equal but opposite force. Neither you nor the wall will move. Forces that cause a change in the motion of an object are unbalanced forces.

24
Q

Weight

A

The weight of an object is it and the weight of it pushing into the ground.

25
Q

Friction

A

When a material rubs against another it creates a friction.

26
Q

Drag

A

Air resistance, or drag, is when a moving object slows down because of the density of the other medium.

27
Q

Gravity

A

the force that attracts a body towards the centre of the earth, or towards any other physical body having mass.

28
Q

Water resistance

A

The same concept as air resistance, except for with water.

29
Q

Streamlined

A

If something is streamlined, it can avoid air resistance or water resistance by cutting through it.

30
Q

3 effects of forces

A

The effects of forces are: change shape, to start moving, to stop moving, to accelerate or decelerate.

31
Q

Tension

A

If something is tense, it has a force acting on it, making is straight and tight.

32
Q

Normal force

A

It is another name for reaction force.

33
Q

Thrust

A

Is an engine force pushing forwards or backwards.

34
Q

Upthrust

A

You can get upthrust from normal force and water being blow you.

Science (5 decks)

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