Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
where an object is at any given time |
position |
|
|
length traveled;how much ground an object has covered during motion; measured in meters. |
distance |
|
|
change in an object's position; distance between the start and the finish; includes length (meters) and direction(left,right,North,South,East,West,etc.) |
displacement |
|
|
how fast an object moves |
speed |
|
|
a point from which a situation is being observed; usually something in the background. |
frame of reference |
|
|
something that does not move; stays in place |
reference frame/point |
|
|
How are distance and displacement different? |
Distance is the whole length an object has covered during motion and displacement is the distance between the start and the finish. |
|
|
How is an object's speed calculated? |
Speed=Distance(m)/Time(s) |
|
|
What information does a distance-time graph provide? |
A distance-time graph tells us how far an object has moved with time. -The steeper the graph, the faster the motion (mountain) -A horizontal line means the object is not changing its position; it is not moving, it is at rest. -A downward sloping line means the object is returning to the start. |
|
|
what is the formula for distance |
distance(m)=speed(m/s) x Time(s) |
|
|
What is the formula for time |
Time(s)=Distance(m) / Speed(m/s) |
|
|
speed and direction of an object (55 m/s North) |
Veloctiy |
|
|
mass in motion |
momentum |
|
|
What is the difference between speed and velocity? |
Speed is how fast an object is moving and velocity is speed and direction |
|
|
How can object's momentum be calculated? |
Momentum(p)=Mass (kg) x Velocity (m/s) -> p=mv |
|
|
what is the formula for velocity |
Velocity= Distance (m) / Time (s) + Direction |
|
|
what is the formula for mementum |
Momentum (p) = Mass(kg) x Velocity (m/s) |
|
|
change in velocity over time |
acceleration |
|
|
uniform circular motion |
centripetal acceleration |
|
|
How are acceleration,time, and velocity related? |
used in the same equation |
|
|
what are three ways an object can accelerate? |
-speed change -direction change -speed and direction change (together) |
|
|
How can an object's acceleration be calculated? |
A=Vf-Vi/t |
|
|
what is the formula for acceleration? |
final velocity minus initial velocity divided by time |
|
|
what is the formula for time |
distance divided by speed |
