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ICP Chapter 11 test
| A passenger in the rear seat of a car moving at a steady speed is at rest relative to | The front seat of a car |
| Which distance can be most accurately measured with a ruler | the width of a book |
| One kilometer equals 1000 meters. What does the prefix kilo- mean | 1000 |
| A person drives north 3 blocks, then turns east and drives 3 blocks. The driver then turns south and drives 3 blocks. How could the driver have made the distance shorter while maintaining the same displacement | by driving east 3 blocks from the starting point |
| A ball is rolled uphill a distance of 3 meters before it slows, stops and begins to roll back. The ball rolls downhill 6 meters before coming to rest against a tree. What is the magnitude of the balls displacement | 3 meters |
| Displacement vectors of 1km south, 3 km north, 6 km south, and 2 km north combine to a total displacement of | 2km |
| What is the most appropriate si unit to express the speed of a cyclist in the last leg of a 10-km race | km/h |
| Speed is the ratio of the staince an object moves to | The amount of time needed to travel the distance |
| Instantaneous speed is measured | at a particular instant |
| A car travels 88 km in 1 hour, 90km in the next 2 hours and then 76km in 1 hour before reaching its destination What was the car's average speed. | 63.5 km/h |
| The slope of a line on a distance time graph is | speed |
| Horizontal line on a distance-time graph means the object is | slowing down |
| what is the speed of a bobsled whose distance-time graph indicates that it traveled 100m in 25 s | 4 m/s |
| A distance time graph indicates that an object moves 100 m in 4 s and then remains at rest for 1 s. What is the average speed of the object | 20 m/s |
| A river current has a velocity of 5km/h relative to the shore and a boat moves in the same direction as the current at 5km/h relative to the river. How can the velocity of the boat relative to the shore be calculated | by adding the vectors |
| Vector addition is used when motion involves | (all of the above) or more than one direction, mor ethan one velocity and more than one speed |
| The rate at which velocity changes is called | acceleration |
| Which example identifies a change in motion that produces acceleration | A ball moving at a constant speed around a circular track |
| Objects in free fall near the surface of the earth experience | constant acceleration |
| Suppose you increase your walking speed from 1 m/s to 3 m/s in a period of 2 s. What is the acceleration | 1 m/s |
| The motion of an object looks different to observe in different | Frame of reference |
| The SI unit for measuring BLANK is the meter | Length/distance |
| The direction and length of a straight line from the starting line from the starting point to the ending point of an objects motion is | Displacement |
| Displacement and velocity are examples of BLANK because they have both magnitude and direction | Vector |
| The sum of Two or More vectors is called | Resultant Vector |
| Spped is measured in units of | m/sec |
| A cars speedometer is measures | Instantaneous speed |
| V=d/t is the equation that defines | Average speed |
| A constant slope on a distance time graph represents BLANK speed | constant |
| The difference between speed and velocity is that velocity indicates the BLANK of motion and speed does not |
Created by:
elizareinhart