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27 Cards in this Set
- Front
- Back
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What does N mean in physics? |
N stands for Newtons which is the unit for force. |
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Who is Isaac Newton? |
Isaac Newton is a scientist who became famous because of his discovery called, Newtons laws of motion. |
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What is the formula for force? |
Force = Mass x Acceleration F = M x A |
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What are Newtons laws of motion? |
There are 3 laws that describe the relationship between a body and the forces acting upon it, and the motion in response. Law of Inertia Force = Mass x Acceleration An action will equal a reaction. |
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What is the law of Inertia? |
This is the first law of Newtons las of motion. This is when an object remains at rest or continues to move at a constant velocity, unless acted upon by another force. |
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What is the second law of motion? |
Force = Mass x Acceleration F = ma
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What is the third law of motion? |
When one body puts a force on another, the second body will simultaneously exert a force equal in strength and opposite in direction. |
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Unbalanced |
Based on the picture above, the measure of forces ( Newtons ) are unbalanced. This is because there are 4N going left and 10N going right. This means it will go right by 6N. |
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Balanced. |
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What is speed? |
Speed is a constant rate. Also called velocity ( v ) |
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What is acceleration? |
Acceleration is having a starting point and gradually increasing speed. |
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What is an equation triangle? |
An equation triangle represents different formulas to show us how to work out problems, using at least two symbols. |
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*triangle* s |
This means a change in speed. |
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a |
Acceleration |
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m |
Mass |
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t |
Time |
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D |
Distance |
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S or V |
Speed or Velocity |
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Si |
Speed Initial / starting speed |
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Sf |
Speed final |
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ms ^-1 |
Used to show a constant speed. |
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ms ^-2 |
Used to show acceleration. |
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Formula for a / acceleration |
a = change in speed / time |
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Formula for t / time |
t = change in speed / acceleration Or t = distance divided by time. |
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Formula for change in speed |
Change in speed = acceleration x time Or Change in speed = Sf - Si (speed final - speed initial) |
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Formula for d / distance |
d = speed x time |
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Formula for s / speed ( v / velocity ) |
V = distance / time |
