Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Science exam
| Term | Definition |
|---|---|
| Standard | an exact quantity that people agree to use to compare measurements |
| volume | amount of space occupied by an object |
| mass | amount of matter in an object |
| dependent variable | a variable that changes as another variable changes |
| graph | a visual display of data |
| constant | a variable that does NOT change as another variable changes |
| density | mass per unit volume |
| hypothesis | an educated guess using what you know and observe |
| State the problem and ask a question | First step of scientific method |
| Gather info | Second step of scientific method |
| Form hypothesis | Third step of scientific method |
| Experiment, test hypothesis | Fourth step of scientific method |
| Collect and analyze data | Fifth step of scientific method |
| Draw conclusions | Sixth step of scientific method |
| Peer review | Seventh step of scientific method |
| Kilogram (kg) | SI unit for mass |
| Kelvin (k) | SI unit for temperature |
| Meter (m) | SI unit for length |
| Seconds (S) | SI unit for time |
| Newton (N) | SI unit for weight |
| K | prefix for kilo |
| C | Prefix for centi |
| M | Prefix for milli |
| Bar graph, line graph, circle graph | 3 types of graphs |
| Bar graph | useful for comparing info or displaying data that does not change continuously |
| line graph | show any relationship where the dependent variable changes due to a change in the independent variable |
| circle graph | used to show how a fixed quantity is broken into parts |
| x axis | Axis independent variable is found |
| Y axis | axis dependent variable is on |
| 10 | SI system is based on powers of |
| d=m/v | how to calculate density of an object |
| line graph | If you leave a glass of water in direct sunlight for 2 hours and measure it’s temperature every 10 minutes what type of graph would you use? |
| Temperature | if you left a glass of water in the sun for 2 hours and measure it’s temperature every 10 minutes what would the dependent variable be? |
| Time | if you left a glass of water in the sun for 2 hours and measure it’s temperature every 10 minutes what would the independent variable be? |
| His arm length would change when there was a new king, and different kingdoms with different kings have different arm lengths | standards of measurement used during the Middle Ages were often based off of things like the king’s arm, how would you convince people to use a different system of measurement? |
| scientific theory | explanation of things or events based on knowledge, observations, and investigations |
| scientific law | a state about what happens in nature and appears to be true all the time |
| 0 | during linear motion, if velocity is constant acceleration is… |
| parabolic | path of a projectile is… |
| speed | a scalar measurement and only concerned with magnitude |
| velocity | a vector measurement and concerned with magnitude and direction |
| distance | involves total ground covered, regardless of direction |
| displacement | describes the change in initial and final position and includes a direction |
| average speed | a total distance over total time |
| instantaneous speed | speed at a particular point in time |
| velocity | what info is given by the slope of a line on a distance vs. time graph? |
| acceleration | what info is given by the slope of a line on a velocity vs. time graph? |
| They will hit the ground at the same time (5s) | 2 balls are dropped at the same time and height. One ball is dropped and hits the ground 5 seconds later. The other moves horizontally at 13 m/s, when does the second ball hit the ground? |
| s=d/t S(m/s) d(m) T(s) | Formula for speed and units |
| a= Vf-Vi/t. A(m/s2) Vf+Vi (M/s) T(s) | Formula and units for acceleration |
| p=mv P(kg m/s) M(kg) V(m/s) | formula and units for momentum |
| moving around in a circle at a constant speed | When can speed be constant and acceleration equal to zero? |
| friction | oppose sliding motion of 2 surfaces that are in contact |
| centripetal force | when an object moves in a circular path |
| inertia | describes tendency of an object to resist a change in motion |
| terminal velocity | maximum speed an object will reach when falling through the air |
| free fall | if gravity is the only force acting on an object they are in… |
Created by:
Caydee $mith