General Overvew
The objects dealt with in this unit travel in how many directions? One. If you didn't know that, leave this website now because you do not deserve to learn this useful information.
Anyways, the topics this unit will cover are listed above. In order to understand this unit, you will have to know the following general concepts.
Anyways, the topics this unit will cover are listed above. In order to understand this unit, you will have to know the following general concepts.
Vectors and Scalars
A vector is a quantity with both a magnitude and a direction. Examples that will be discussed later include displacement, velocity, and forces.
A scalar is a quantity with just a magnitude. Examples in distance, speed, and energy
A scalar is a quantity with just a magnitude. Examples in distance, speed, and energy
"VECTOR! That's me, because I commit crime with both direction
and magnitude! Oh Yeeeeeaaaah!"-Vector (Victor) from Despicable Me
and magnitude! Oh Yeeeeeaaaah!"-Vector (Victor) from Despicable Me
Displacement and Distance
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Displacement is the shortest path between the initial and final positions. IT IS A STRAIGHT-LINE DISTANCE.
Distance is the total path taken. Displacement has a magnitude and direction so it is a vector. Distance is just a magnitude and thus is a scalar. |
Velocity and Speed
Whether you are a physicist, a marathon runner, the Flash, or anyone else, you need to know what velocity is.
Velocity is how fast an object is moving. It is calculated by displacement divided by time: V=x/t.
Speed, on the other hand, is distance over time. It is a scalar quantity that uses the same formula.
Velocity is how fast an object is moving. It is calculated by displacement divided by time: V=x/t.
Speed, on the other hand, is distance over time. It is a scalar quantity that uses the same formula.
UNITS
DISTANCE: Meter
TIME: Second
MASS: Kilogram
(THE FOLLOWING AREN'T USED IN THIS UNIT BUT IN MANY OTHER ONES)
CURRENT: Ampere
TEMPERATURE: Kelvin
AMOUNT OF MATTER (usually in chemistry): Mole
LUMINOUS INTENSITY: Candela
TIME: Second
MASS: Kilogram
(THE FOLLOWING AREN'T USED IN THIS UNIT BUT IN MANY OTHER ONES)
CURRENT: Ampere
TEMPERATURE: Kelvin
AMOUNT OF MATTER (usually in chemistry): Mole
LUMINOUS INTENSITY: Candela
