| Measurements | ||
| #1 | The amount of distance traveled dived by the amout of time it took to travel that distant measures... | speed |
| #2 | Speed with a given direction is called... | velocity |
| #3 | If a car is continuing on at the same speed for a given period of time we called this_________ speed | constant |
| #4 | If an object changes motion by increasing speed, decreasing speed, or changing direction this is called... | acceleration |
| #5 | If a car travels around a circular track 3 times and ends up at the starting line he has a ___________ of 0 km. | displacement |
| Motion | ||
| #1 | If an object's distance is changing in comaprison to another object it is... | moving or in motion |
| #2 | A place or object used for comparison to determine if something is in motion | reference point |
| #3 | A car approaching a red light and slowing down is a example of... | deceleartion |
| #4 | Potential energy that depends on height is called... | gravitational potential energy |
| #5 | In a graph showing spoeed vs. time, a staright line would tell us that the acceleration is... | constant |
| #1 | If a cyclist travels 30 km in 2 hours, what was her average speed? | 15 km/hr |
| #2 | the total disntace travled divided by the total amount of time the trip took is called _______ __________ | average speed |
| #3 | A large truck and a and a small car are moving at the same speed. The truck has greater kinetic energy because it has a larger ________ than the car. | mass |
| #4 | Are the people living on the equator of Earth accelerating? Remember the earth is spinning on its axis at 1670 km/hr. | yes they are, they are constantly changing direction |
| #5 | What is the unit used to measure acceleration? | m/s/s (meters per second per second) or m/s^2 (meters per second squared) |
| Energy | ||
| #1 | the energy associated with motion is called _________ energy | kinetic |
| #2 | unlike kinetic energy that requires motion, potential energy is ______________ | Stored |
| #3 | When would a basketball that was tossed in the air have the most kinetic energy? | When the ball is closest to landing |
| #4 | When does a basketball that has been tossed in the air have its greatest potential energy? | highest peak |
| #5 | Is a basketball accelerating when it reaches its peak? | yes, changes direction. |
| See graph on board for answers | ||
| #1 | What two variables are plotted on the graph? | time and speed. |
| #2 | What does line segment 0-3 represent? | increase in speed over time |
| #3 | Did the ball decelerate? | no, did not slow down |
| #4 | What is the speed of the ball in the final 2 seconds? | 3 m/s |
| #5 | What type of energy does the ball have? | kinetic |
| Final Question | |
| What is the law of conservation of energy? | Energy cannot be created nor destroyed. |