sci #1 Flashcards
(21 cards)
the speed of an object in
a specific direction.
Velocity
Is how long it takes for something to move from one place to another.
Time
Is how far an object moves
from one place to another.
DISTANCE
Is the shortest
distance from where the obiect starts to where it ends, including direction.
DISPLACEMENT
Is the measure of the amount of matter
in an object.
MASS
Is the force exerted on an object due to gravity.
WEIGHT
Is the force that pulls the
objects toward the ground.
GRAVITY
Gravity on earth:
Gravity on the moon:
Gravity on mars:
9.8 m/s^2
1.6 m/s^2
3.7 m/s ^2
Is the rate at which an object’s velocity increases over time,
ACCELERATION
Is the rate a which an object’s velocity decreases over time.
DECELERATION
In physics, deceleration is considered acceleration because acceleration refers to any change in velocity, whether an object speeds up or slows down. It is simply ____.
negative acceleration
If a body maintains a constant change in velocity in a given time interval along a straight line, then the body is said to have a uniform acceleration.
UNIFORMLY
ACCELERATED MOTION
Accelerating from left to right or right to left.
Horizontal Dimension
occurs when an object’s velocity changes at a constant rate in a straight line.
Uniformly accelerated motion
An object in uniformly accelerated motion ______ at a constant rate in the horizontal direction.
increases or decreases its velocity
If an object speeds up, the acceleration is ____ (same direction as velocity).
positive
If an object slows down, the acceleration is_____ (opposite direction of velocity.
negative
In the absence of external forces like friction or air resistance, acceleration ____
remain constant
in the vertical dimension refers to the motion of objects moving up or down under the influence of ____, where acceleration remains constant. This type of motion is also known as ____ when air resistance is negligible.
Uniformly accelerated motion
gravity
free fall
Accelerating either downward or upward.
Vertical Dimension
