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QuestionAnswer
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
Created by: ChimChim