Questiona | Answer |
acceleration | This is the rate at which velocity changes. |
balanced forces | This is when forces are combined and there is a zero net force and no change in motion. |
motion | You can tell that this has occured because an object's position has changed compared to its reference point. |
net force | This is the resulting force when two or more forces are combined. |
speed | This is the distance covered in a period of time. |
unbalanced forces | When forces are combined, this results in a net force and causes a change in motion. |
reference point | This is an object that seems to stay still. |
velocity | This is the speed of an object in a given direction. |
action force | The force that is put on an object. |
gravity | This is the invisible attaction obetween two objects. Its strength depends on mass and distance. |
inertia | This is the tendency of objects to resist changes in motion. |
momentum | This is the measure of an object's motion based on mass and velocity. |
weight | This measures the force of gravity on an objcet. |
reaction force | This is the force that an object puts back onto the object putting a force on it. |
F = MA | This is the formula associtated with Newton's 2nd Law. |
Newton's Second Law | An example of this law is the harder you kick a soccer ball the farther it will go. |
Newton's Third Law | An example of this law is when you put a force on a table leg with your toe, the table leg puts a force back on your toe. |
Newton's First Law | The reason we wear seatbelts can be explained by using this law of motion. |