| A | B |
|---|
| The location of an object | position |
| A baseball catcher stand's _____ home plate | behind |
| Ojects used for comparing an object's position are the ______. They do not move. | frame of reference |
| The distance an object moves in a certain amount of time | speed |
| This is an example of a car's speed | 50 miles per hour |
| A push or pull | force |
| A force can make an object... | stop moving, speed up, slow down, or change direction |
| Greater ______ will cause a greater change in the object's motion | force |
| If the same force is applied to two objects of different mass, the force will have less effect on the object with _______ mass. | greater |
| If the same force is applied to a tennis ball and a basketball, the tennis ball will move a longer distance becaus it has a ______ mass. | smaller |
| A force that slows or stops a moving object is | friction |
| Friction works ______ motion. | against |
| Two objects rub against each other to ____ motion when friction is created. | stop. |
| The friction between two _____ surfaces is greater than the friction between two smooth surfaces | rough |
| The friction between ice skates and ice is ____ than the frictions between your shoes and carpet. | less |
| The tendencey of an object to stay in motion or stay at rest unless a force acts upon it is known as ______. | inertia |
| _______formulated the "Law of Inertia" | Sir Isaac Newton |
| The force that pulls you toward the ________ is called gravity | earth's surface |
| A paper airplane falls to the ground after a few second of flight. This represents | gravity |
| A soccer ball comes to a stop after being kicked across a soccer field. This represents | friction |
| You moved forward even after a car stops. This represents | inertia |
| When a force is used to move an object ____ takes place. | work |
| When a larger mass is moved, ____ work takes place | more |
| _____ is needed to apply a force to make an object move. | Energy |
| The energy of a motion is ____ energy. | kinetic |
| Stored energy, or the energy an object has becuase of its position, is called ____ energy. | potential. |
| An example of kinetic energy | a clock pendulum swinging |
| An example of potential energy | a rock on top of a cliff |
| An example of chemical energy | coal burned to produce heat |
| An example of mechanical energy | moving gears on a bicycle |
| An example of electrical energy | an iron plugged in to an electrical socket |
| Energy can change _____. | form |
