| Speed | ||
| #1 | If Coach Kampen throws the football 60 meters in 4 seconds, what is the average speed (velocity) of the football? | 15 m/s |
| #2 | If it takes Old McDonald 45 seconds to run from the from his house to his barn door at an average speed (velocity) of 3 meters per second, what is the distance he covers in that time? | 150 m |
| #3 | What is the definition of speed? | The distance an object travels in a certain amount of time. |
| #4 | How do you find speed? | s=d/t |
| #5 | On a motion graph a steep straight line shows... | a constant fast speed |
| Newton's Laws | ||
| #1 | The Law of Acceleration. | 2 |
| #2 | Pushing a child on a swing requires less force than pushing an adult. | 2 |
| #3 | The air is let out of a balloon and it flies around the room. | 3 |
| #4 | A baseball continues to roll until friction, gravity, and air resistance stop it. | 1 |
| #5 | The Law of Inertia | 1 |
| Forces | ||
| #1 | An object moves when acted on by.... | unbalanced forces |
| #2 | If forces are balanced an object is most likely... | not in motion |
| #3 | What is the most common contact force? | Friction |
| #4 | What is the net force on a box if Joey pushes the box at a force of 50N right and Cody pushes the box at 40N left? | 10N right |
| #5 | What is net force? | The combination of all forces on an object. |
| Speed Velocity Acceleration | ||
| #1 | An ant walking 10 millimeters per second. | speed |
| #2 | A train left the station heading towards Dallas at 75 miles per hour north. | velocity |
| #3 | A knuckleball pitcher can throw a ball that has varying speeds. | acceleration |
| #4 | The flight from NYC to Los Angeles travels at 550 mph west each morning | velocity |
| #5 | The car slowed down at the train crossing because the crossbars lowered. | acceleration |
| Miccelaneous | ||
| #1 | How do you find average acceleration? | (V2-V1)/t |
| #2 | What is the unit for acceleration? | meters per second squared |
| #3 | A train comes to a quick stop, what happens to the acceleration vectors? | They are in opposite directions |
| #4 | What are 4 common examples of acceleration? | slowing down, speeding up, stopping, and turning |
| #5 | A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope, its speed is 4 m/s. But 3 seconds later, at the bottom of the slope, its speed is 22 m/s. What is its average acceleration? | 6 m/s2 |
| Final Question | |
| You are traveling in a car that is moving at a velocity of 20 m/s. Suddenly, a car 10 meters in front of you slams on it’s brakes. At that moment, you also slam on your brakes and slow to 5 m/s. Calculate the acceleration if it took 2 seconds to slow your car down. | -7.5m/s2 |