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vector
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A vector is represented by an arrow What is the significance of the length of the arrow?
The length of the arrow signifies the magnitude or size of the vector.
How can you use a graph to show acceleration?
With great difficulty. Acceleration is a vector and that means that it has a direction as well as a magnitude (size). For motion in a plane, the only effective way to show acceleration is to draw lots of arrows from points at regular intervals in a plane such that the length of the arrow is a measure of the magnitude of the acceleration and the direction of the arrow coincides with that of the acceleration. An answer referring to a speed-time graph is totally incorrect. That measures speed in the radial direction only. All apects of motion (displacement, speed, acceleration) in a transsverse direction are completely ignored.
Can a vector be represented by an arrow only?
Yes, but only if the size (length) of the arrow is related to some scale.
What is the term for the ratio representing the size of an illustration or reproduction in relation to the object it represents?
The term is "scale."
A direction a vector is drawn indicates the magnitude of the vector?
No. The size of the size of the vector drawn indicates the magnitude.
When adding vectors in one dimension what could the position of the head of the arrow represent?
An Arrow can be used to represent a vector by having the direction of the arrow indicate the direction of the vector and the size or length of the arrow represent the size of the vector.
When adding vector in one dimension what could the position of the head of the arrow represent?
An Arrow can be used to represent a vector by having the direction of the arrow indicate the direction of the vector and the size or length of the arrow represent the size of the vector.
How are the size and directions of a force represented?
A force can be represented by an arrow in which the size of the force is represented by the length of the arrow (on some artbitrary but defined scale) and the direction of the force is the diretion of the arrow.
If vector is a quantity that has both size and direction?
... then what is the question?
What is meant by magnitude of force?
A force is a vector - in two dimensions, you can represent it on paper as an arrow. Such vector/arrows have a size, and a direction. The size is usually called the "magnitude".
What is something that must be described with both a size and a direction?
acceleration
What is the quantity as acalar or vector?
A vector quantity has both size (magnitude) and direction involved but a scalar quantity only has size involved and not direction.
Do levers change the direction or the size of the force?
They can do either, neither, or both.
Velocity is a measure of both an object's speed and its what?
Direction. Velocity is a vector quantity. Vectors have a scalar size and a vector direction.
What operty does a scalar have?
Scalars have magnitude (size). This is in contrast with vectors, which have both a magnitude and a direction.
A force has both what?
A force is a vector quantity because it has both magnitude and direction.
What is meant by the magnitude of force?
A force is a vector - in two dimensions, you can represent it on paper as an arrow. Such vector/arrows have a size, and a direction. The size is usually called the "magnitude".
