Science
This variable is the one you measure in an experiment.
What is the dependent variable?
The branch of mechanics that aims to describe the movement of objects.
What is Kinematics?
This type of graph's slope tells you about an object's acceleration.
What is a velocity-time graph?
Objects in the state of free fall are only affected by this force.
What is the force of gravity?
For an object that comes to a stop, this variable will have a value of 0m/s.
What is final velocity?
This is a feature of measurements that are all very close to each other.
What is precise?
What is velocity?
The slope of a position-time graph will have this feature if the position of the object is changing by the same amount each second.
What is straight?
Objects in free fall speed up by this amount each second (in the negative direction).
What is 9.8m/s?
A car accelerates from rest at a rate of 3.2m/s/s. When the car has moved 20m this is the car's velocity.
What is 11.3m/s?
This type of error would be caused by an instrument that repeatedly gives you an inaccurate reading.
What is negative?
The slope of a velocity-time graph will have this feature if the object is moving in the negative direction.
What is plotted below the x-axis?
This is the only thing you need to know about a free-falling object to calculate its final velocity or displacement.
What is the amount of time its been falling?
An object speeds up from a velocity of 10m/s to a velocity of 20m/s. This is how long the object takes to move 45m.
What is 3 seconds?
A scientific hypothesis must have these 2 features.
What is testable and falsifiable?
An object that moves 40m in the negative direction and then 20m in the positive direction will have a displacement of this.
What is -20m?
The slope of a velocity-time graph will be a flat line straight across if this condition is met.
What is constant velocity or zero acceleration?
Objects thrown straight up will do this until they reach a velocity of 0m/s at their peak.
What is slow down?
An object starts from rest and accelerates at a rate of 10m/s/s. This is how long it takes the object to move 100m.
What is 4.5s?
This is how many decimetres are in one kilometre.
What is 10,000?
An object with an acceleration of -2m/s/s and an initial velocity of 10m/s will come to a stop in this many seconds.
What is 5 seconds?
An object with a velocity-time graph that has a negative slope plotted below the x-axis is doing this.
What is speeding up?
A free falling object will have this velocity after 9 seconds of falling.
What is -88.2m/s?
A kangaroo is capable of jumping to a height of 2.62 m. This is the takeoff speed of the kangaroo.
What is 7.2m/s?