click below
click below
Normal Size Small Size show me how
motion or whatever
motion be like: >>>>>>
Question | Answer |
---|---|
What is velocity? | Speed in a given direction |
What is speed? | How fast something is going, distance divided by time |
Explain displacement. | The change in an object’s original position |
What is distance? | The amount of ground an object covers while in motion |
Explain acceleration. Tell three ways an object can accelerate. | An object change it’s acceleration by changing direction, speeding up, or slowing down |
Explain why deceleration is also acceleration. | Acceleration is the change in velocity or speed, if you slow down, your speed is still changing |
What does a flat line on a distance/time graph represent? | It means the object did not travel, but time has passed |
Greater slope up means ____________ on a distance/time graph | Constant speed away from the starting position |
Greater slope down means ____________ on a distance/time graph. | Constant speed back towards the starting position |
What does a flat line on a velocity/time graph represent? | Steady speed |
What does an upward slope on a velocity/time graph represent? | Positive acceleration away from starting point |
What does a downward slope on a velocity/time graph represent? | Slowing down, negative acceleration, deceleration |
What does constant velocity mean? | Speed in a given direction |
Tell three ways velocity can change. | Changing direction, changing speed, or changing speed AND direction |
If an object’s mass increases, its acceleration will ______________. | Also change |
Force = _________ x ____________ | Mass x acceleration |
What are unbalanced forces? | Unequal forces that act on an object |
What are balanced forces? | Equal forces that act on an object in opposite directions |
Net force = _______________ | The sum of all forces acting on an object |
What type of force does not cause acceleration? | Balanced |
What is magnitude? | Size |
What is vector? | Direction |
Explain Newton’s First Law of Motion. | An object in motion will stay in motion unless it is acted upon by an unbalanced force. This means the object’s inertia will remain constant. |
Greater mass = __________ inertia | Greater |
Explain Newton’s Second Law of Motion. | When a net force acts on an object, the object will move in the direction of that net force. This means that if I were to push an object to the right, it would go to the right. |
Explain Newton’s Third Law of Motion. | Every action has it’s equal opposite reaction. This means that if something is falling, there will be air resistance acting upon the object in the opposite direction. |
What is inertia? | The resistance an object has to change |
What is another name for Newton’s First Law of Motion? | Law of inertia |
What does air resistance depend upon? | Size, shape, speed, and surface area of the falling object |
What is the formula for velocity? | Divide distance by time, then add direction |
What is the difference between speed and velocity? | Speed is how fast something is going, velocity is how fast and in what direction something is traveling |
What is the difference between mass and weight? | Mass is the amount of matter in an object, while weight is the impact of gravity on said object |
How does your mass on Earth compare to your mass on the moon? | Your mass is the same |
How does your weight on Earth compare to your weight on the moon? | You would weigh less on the moon |
Explain friction. How does it affect the movement of an object? | Friction is the resistance to any movement, it effects the movement by making it more difficult for the object to travel, gradually slowing the object down |
How does the mass of an object affect the amount of force needed to accelerate the object? | The more mass, the more acceleration needed. If something has a mass of 1kg, you would need more than 1kg to accelerate it |
Explain how to solve a vector diagram (to determine a net force). | If an object is moving with a force of 5 on one side and a for of two on the other, you would subtract two from five. Determining that the object would ultimately move with a force of three in the direction the 5 previously presented |