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| 2427154881 | Force | A push or a pull: something that changes the motion of an object. | 0 | |
| 2427157858 | Inertia | The resistance of an object to a change in the speed or the direction of its motion. | 1 | |
| 2427159363 | Mass | A measure of how much matter an object is made of. | 2 | |
| 2427160250 | Net Force | The overall force acting on an object when all of the forces acting on it are combined. | 3 | |
| 2427162177 | Newton's First Law | Objects at rest remain at rest, and objects in motion remain in motion unless acted on by an unbalanced force. | 4 | |
| 2427163137 | Newton's First Law Example | A soccer ball will stay where it is unless it is kicked. | 5 | |
| 2427162178 | Newton's Second Law | The acceleration of an object increases with increased force and decreased with increased mass. | 6 | |
| 2427166109 | Newton's Second Law Example | You need to push a shopping cart with more force to make it move if it is full. | 7 | |
| 2427166894 | Newton's Third Law | Every time an object exerts a force on another object, the second object exerts a force that is equal in size and opposite in direction back on the first object. | 8 | |
| 2427168201 | Newton's Third Law Example | When you're walking, you push backward on the ground, and the ground pushes you forward with equal force. | 9 | |
| 2427170187 | Newton's second law states that to increase acceleration, you: | Increase force or decrease mass | 10 | |
| 2427172014 | What units are used to measure force? | Newtons (N) | 11 | |
| 2427173547 | A wagon is pulled down a hill with a constant velocity. All the forces on the wagon are: | balanced | 12 | |
| 2427177427 | An action force and its reaction force are _________ in size and _______ in direction. | equal, opposite | 13 | |
| 2427179554 | John pulls a box with a force of 4 N, and Jason pulls the box from the opposite side with a force of 3 N. Ignore friction. In which direction, and with how much force would the box move? | The box will be pulled towards John with a force of 1 N. | 14 | |
| 2427181946 | List the objects in order from the object with least inertia to the object with the most inertia: Feather, large rock, pencil, book. Explain your reasoning. | (Least) Feather, pencil, book, rock (Most). The more mass an object has, the more inertia it has. | 15 | |
| 2427184616 | Explain how an object can have forces acting on it but not be accelerating. | If the forces are balanced, then the object will not move or will move with a constant speed. | 16 | |
| 2427189662 | What force should Lori apply to a 5 kg. box to give it an acceleration of 2 m/s/s? | F = m x a F = 5 kg x 2 m/s/s F = 10 N | 17 | |
| 2427191869 | If a 10 N force accelerates an object 5 m/s/s, how massive is the object? | M = f/a M = 10 N / 5 m/s/s M = 2 kg | 18 | |
| 2427195138 | Ravi applies a force of 5 N to a wagon with a mass of 10 kg. What is the wagon's acceleration? | A = f/m A = 5 N / 10 kg A = 0.5 m/s/s | 19 | |
| 2427200306 | A skier is on a tall mountain. Where does she have the greatest potential energy? | At the top of the mountain. | 20 | |
| 2427202069 | A skier is on a tall mountain. Where does she have the greatest kinetic energy? | At the bottom of the mountain. | 21 | |
| 2427207159 | At which point on the roller coaster will the car have the greatest amount of kinetic energy? | At point X there is the greatest amount of kinetic energy (energy in motion). |  | 22 |
| 2427209697 | At which point on the roller coaster will the car have the greatest amount of potential energy? | At point W there is the greatest amount of potential energy (stored energy). | | 23 |
