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Science test flash cards
flah cards for a science test
25
Science
Not Applicable
02/26/2004

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Cards

Term
Define speed.
Definition
The distance an object travels in a certain amount of time
Term
How do you calculate speed?
Definition
speed=distance/time
Term
What is velocity?
Definition
The speed and direction of an objects motion
Term
What is velocity?
Definition
The speed and direction of an objects motion
Term
Define Frame of Reference.
Definition
A place or object that you assume is fixed.
Term
What is the difference between speed and velocity?
Definition
Speed is the distance and objct travels while velocity is the speed and direction.
Term
which one is more accurate, speed or velocity?
Definition
velocity
Term
What is constant speed?
Definition
when an object doesnt change its speed
Term
What is the difference between average speed and constant speed?
Definition
constant speed stays the same while average speed is always changing
Term
What is the difference between average speed and constant speed?
Definition
constant speed stays the same while average speed is always changing
Term
What is the difference between average speed and constant speed?
Definition
constant speed stays the same while average speed is always changing
Term
What is acceleration?
Definition
the rate at which velosity changes
Term
How do you calculate acceleration?
Definition
acceleration=final velocity-starting velocity/time
Term
What does positive acceleration show?
Definition
an increase in speed
Term
What does negative acceleration show?
Definition
a decrease in speed
Term
What is deceleration?
Definition
decreasing of speed
Term
Acceleration caused by motion in a circle is called what?
Definition
centripetal acceleration
Term
Acceleration caused by motion in a circle is called what?
Definition
centripetal acceleration
Term
What is energy?
Definition
The ability to work
Term
What are 3 examples of energy?
Definition
Kinetic, potential, conservation of energy
Term
How do you calculate kinetic energy?
Definition
K.E.=mass x velocity(squared)/2
Term
Can energy be destroyed?
Definition
No
Term
What does G.P.E. stand for?
Definition
Gravitational Potential Energy
Term
Define kinetic energy.
Definition
energy of motion
Term
What are 3 types of acceleration?
Definition
Positive, negative, and change in direction
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