A complete description of your position includes
a distance, a direction, and a reference point
.
What is needed to determine the position of an object?
To identify an objects position, you
must compare its location with that of another object or place
.
What are the 3 criteria for an object to accelerate?
There are three ways an object can accelerate:
a change in velocity, a change in direction, or a change in both velocity and direction
.
What 3 things can motion be measured by?
You can describe the motion of an object by its
position, speed, direction, and acceleration
.
What 3 information do you need to describe the position of an object?
To describe an object’s position, you must include three pieces of information:
a reference point, a reference direction, and the distance from the reference point in the reference direction
.
What is the change in position of an object called?
In physics,
motion
is the phenomenon in which an object changes its position over time. Motion is mathematically described in terms of displacement, distance, velocity, acceleration, speed, and time. … One can also speak of motion of images, shapes, and boundaries.
What is the position of the object answer?
Answer: The exact position of an object is
the separation between the object and the reference point
. When an object moves, we often refer to the amount it moves as the distance….
Why do you need reference point to determine the position of an object?
A reference point is important in determining motion because in order to say that something is
moving, you need to have something stationary to compare it to
.
How far can an object move between two positions?
Displacement is the change in position of an object. The SI unit for displacement is the meter. Displacement has direction as well as magnitude.
Distance traveled
is the total length of the path traveled between two positions.
Is the rate at which an object is moving at a given instant?
Instantaneous speed
is the rate at which an object is moving at a given instant in time. When you know both the speed and distance of an object’s motion, you know the velocity of the object. … In science, velocity refers to increasing speed, decreasing speed, or changing direction.
What is an example of an object accelerating?
For example,
if a car turns a corner at constant speed
, it is accelerating because its direction is changing. The quicker you turn, the greater the acceleration. So there is an acceleration when velocity changes either in magnitude (an increase or decrease in speed) or in direction, or both.
What are 3 examples of acceleration?
- An object was moving north at 10 meters per second. …
- An apple is falling down. …
- Jane is walking east at 3 kilometers per hour. …
- Tom was walking east at 3 kilometers per hour. …
- Sally was walking east at 3 kilometers per hour. …
- Acceleration due to gravity.
How do you know if an object is accelerating?
If its position changes uniformly with time then you say its speed is a constant but its acceleration is zero. If its speed increases in time then you say it has an acceleration. If in a small amount of time Δt its velocity increases by an amount Δv then you say the acceleration is a
= Δv/Δt
.
What is motion class 9?
Movement of any object from one position to another position with respect to the observer is
called as Motion. Motion Along a Straight Line: When an object moves along a straight line, the motion of the object is called rectilinear motion. For example; motion of a car on highway.
Does speed depend on direction?
Speed (s) – Rate at which an object is moving. Like distance,
speed does not depend on direction
.
What is difference between distance and displacement?
Distance is a scalar quantity that refers to “how much ground an object has covered” during its motion. Displacement is a vector quantity that refers to “how far out of place an object is”; it is the object’s overall change in position.
