Contact and Non-Contact Forces
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What creates a balance of systems?
Balances are not caused by forces, but other conflicting concepts that oppose each other creating harmonious balance.
What is a force that occurs between 2 objects?
Contact Force
What is the inward force from a stretched out object such as a rope or spring?
Tension
What is the outward force from a compressed object?
Compression Force
What is a force that occurs when 2 objects are in contact and try to slide past each other?
Friction
What is the force felt by something moving through the air that acts against the objects motion?
Air Resistance
What is the force acting between objects with mass?
Gravity
Does the force of gravity get stronger or weaker when the mass is larger?
Stronger
What is the force that acts like magnets?
Magnetism
What is a material attracted to a magnet?
Magnetic Material
What is a property of matter?
Mass
What is the force that acts on an object due to gravity?
Weight
What is a push or a pull?
Force
What unit is used to measure force?
Netwon (N)
What are quantities that have a direction and a size?
Vector Quantities
What is the size of quantity not taking the direction into account?
Magnitude
What type of forces act over very long range?
Gravitational Forces
What does SI mean?
SI is the abbreviation System of International. This system of units is used by scientists for the standard units of measurement which include kilogram, second, and meter.
What is a spring balance that measures the size of a force?
Newtonmeter
What is the sum of all forces that act on an object?
Netforce or the Resultant Force
How do you calculate forces when they are going in the same direction?
Add together 10N –> 10N –> 20N Right –>
How do you calculate forces when they are going in the opposite direction?
Subtract 10 N –> and 10N <– = 0N 10N–> and 25N <– = 15N <– Left
If forces are acting in right angles, what theorem do you use to calculate?
Pyhtagoras 10N –> and 10N ^