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12 Cards in this Set
- Front
- Back
Force |
A push or pull |
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Newton (N) |
The metric units for force (spring scale) |
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Net force |
The total force acting on an object (same direction=add) (opposite direction=subtract) |
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Balanced forces |
Do not change the motion of an object (net force=0) |
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Unbalanced forces |
Change the motion of an object |
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Gravity |
The attractive force that exists between all objects (pulls down on earth) |
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Weight |
The force due to gravity on an object (weight is relative/changes based on where you're standing) |
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Friction |
A force that resists motion between two surfaces that are touching (makes heat) |
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Tension |
A force that is transmitted through a rope, string or wire when pulled by forces acting from opposite sides |
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How do you measure force? |
Newtons (N) |
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How do you measure mass? |
Kilograms (kg) |
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How do you measure acceleration? |
m/s² (meters per second squared) |