| A | B |
|---|
| Compared to a 1-kg block of solid iron, a 2-kg block has twice as much | inertia, volume, and mass |
| the gravitational attraction force between you and the Earth | weight |
| If one object has twice as much mass as another object, it also has twice as much _____ | volume |
| An object is propelled along a straight-line path in space by a force. If the mass of the object somehow becomes twice as much, its acceleration | halves (acceleration=1/mass |
| What is the net force in free fall of an apple that weighs 1 N | 1 N |
| A 1-kg mass at the earth's surface weighs | 10 N |
| Whenever the net force on an object is zero, the acceleration is always _____ | zero |
| 1 kg mass at the earth's surface weighs | 10 N |
| A rock is thrown vertically into the air. At the top of its path, its acceleration is ______ | 10 m/s 2 |
| Two factors that greatly affect air resistance on falling objects are the _____ and _____ | size and speed |
| A skydiver who weighs 500 N has reached terminal velocity of 90 km/h. The air resistance on the diver is _____ | 500 N |
| A car has a mass of 1000 kg and accelerates at 2 m/s 2. What is the magnitude of the net force exerted on the car? | 2000 N |
| What is the equation for acceleration? | a=Fnet/mass |
| A force of 1 N accelerates a mass of 1 kg at the rate of 1 m/s2. The acceleration of a mass of 2 kg acted upon by a net force of 2 N is _____ | the same |
| 1 kg = ___ N | 10 |
| Galileo's use of inclined planes allowed him to effectively _____ | decrease of free fall |
| Which of the following is not a vector quantity | speed |
| What are the two measurements necessary for calculating speed? | distance and time |
| If an object falling freely were somehow equipped with an odometer to measure the distance it travels, then the amount of distance it travels each succeeding second would be _____ | greater than the second before NOT DOUBLED!!!! |
| If an object moves with constant acceleration, its velocity must | change by varying amounts depending on its speed |
| Drop a rock from a 5- m height and it acceleration at 10 m/s2 and strikes the ground 1 s later. Drop the same rock from a height of 2.5 m and its acceleration is | the same |
| What is mr. henry's triangle for the equation for speed | d on top, s and t on bottom |
| When an object is in free fall, the acceleration ______ | stays the same |
| If your automobile runs out of fuel while you are driving the engine stops but you do not come to an abrupt stop. The concept that most explains why is _____ | inertia |
| Galileo advocated the Copernican theory of the solar system and | showed that heavier objects fall at the same rate as lighter objects |
| The amount of gravitational attraction on an object depends on | the position of the object |
| Asteroids keep moving in space because | the law of inertia |
| Science and technology are: | related to each other in that technology applies principles of science |
