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Motion Review
| Question | Answer |
|---|---|
| What is velocity? | The speed of something in a given direction |
| What is speed? | Distance traveled per unit of time |
| What is displacement? | The change in position from an original location |
| What is distance? | The amount of ground an object has covered during its motion. |
| What is acceleration. And explain all three ways an object can accelerate | Acceleration is the rate of change in an objects velocity or speed. Three ways an object can accelerate is speeding up, slowing down, or changing direction. |
| Explain why deceleration is also acceleration. | Deceleration is acceleration too. This is both deceleration and acceleration both ave an affect on the objects rate of speed. |
| What does a flat line on a distance/time graph represent? | It means stopped. |
| Greater slope up means ____________ on a distance/time graph. | fast steady speed |
| Greater slope down means ____________ on a distance/time graph. | returning to stop |
| What does a flat line on a velocity/time graph represent? | steady speed |
| What does an upward slope on a velocity/time graph represent? | Acceleration |
| What does a downward slope on a velocity/time graph represent? | Deceleration |
| What does constant velocity mean? | It means moving in a straight line at a constant speed |
| Tell three ways velocity can change. | It can slow down speed up up or change direction |
| If an object’s mass increases, its acceleration will ______________. | Increase |
| Force = _________ x ____________ | mass multiplies by acceleration |
| What are unbalanced forces? | Forces that act on an object unequal. Not equal in size an/or direction |
| Net force = _______________ | The sum of all objects acting on an object |
| What type of force does not cause acceleration? | Inertia |
| What is magnitude? | The size of something |
| What is vector? | Direction of something |
| Explain Newton’s First Law of Motion. | A body in motion will most likely stay in motion |
| Greater mass = __________ inertia | greater inertia |
| Explain Newton’s Second Law of Motion | When a net force acts on an object, the object will accelerate |
| Explain Newton’s Third Law of Motion. | For every force or action, there is an equal and opposite reaction. |
| What is inertia? | It means an objects motion will stay constant |
| What is another name for Newton’s First Law of Motion? | The law of inertia |
| What does air resistance depend upon? | Depends on the objects properties |
| What is the formula for velocity | Distance divided by time |
| What is the difference between speed and velocity? | Velocity is speed given in a certain direction while speed is the measure of distance traveled per unit of time. |
| What is the difference between mass and weight? | Mass is the amount of matter in an object while weight is the force gravity has upon you |
| How does your mass on Earth compare to your mass on the moon? | the mass on the moon is different because the moon has a weaker gravitational pull |
| Explain friction. How does it affect the movement of an object? | Friction is the resistance of something depending on the surface it's being dragged upon and either slows it down or speeds it up |
| How does the mass of an object affect the amount of force needed to accelerate the object? | The more mass there is the greater the force of gravity will act upon it ( pull it down ) |
| Explain how to solve a vector diagram (to determine a net force). | You must look at the ways the line moves |
| What are balanced forces? | A force that acts upon an object in an equal force. Do not cause a change in motion. |
Created by:
ChrisY1
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