Unit 1
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Random pt 2
100
This is the step of the scientific method where you make an educated guess about the answer to a question.
what is a hypothesis?
100
The formula for speed is distance divided by this.
What is time?
100
This force pulls objects toward the center of Earth.
What is gravity?
100
Work is calculated by this.
What is force x distance?
100
The push or pull on an object is known as this.
What is a force?
100
A student pushes a box, but it doesn’t move. Work done on the box is this amount.
What is 0 joules?
200
This type of variable is the one you intentionally change during an experiment.
What is an Independent Variable?
200
A car going 25 m/s east describes this objects ...
What is velocity?
200
Newton’s 1st Law is also known as this.
What is Law of Inertia?
200
This is the unit used to measure work.
What is joules?
200
This type of energy an object has because of its motion.
What is Kinetic energy?
200
This is the net force acting on an object if two forces act in opposite directions: 30 N right and 45 N left.
What is 15 Newtons left?
300
The factor that responds to or depends on the independent variable.
What is the Dependent variable?
300
When an object changes its speed, direction, or both, this is happening.
What is acceleration?
300
This is the formula for force.
What is mass multiplied by acceleration?
300
Power measures how fast work is done and uses this unit.
What is Watts?
300
This unit shares a name with a famous mathematician and is used to measure the force of an object.
what is Newton?
300
one horse power is equal to this
What is 746 Watts?
400
A statement based on your senses, NOT an opinion.
What is an Observation?
400
If a runner travels 100 meters in 20 seconds, their average speed is this.
What is 5m/s?
400
According to Newton’s 3rd Law, for every action there is one of these.
What is an equal and opposite reaction?
400
No work is done if an object doesn’t do this.
What is move?
400
The slope of the line on a distance vs time graph describes an objects this.
What is Speed?
400
An object moving in a circle at a constant speed is still doing this.
What is accelerating?
500
This target can be described as this
What is accurate but not precise?
500
An object accelerates from 0 m/s to 12 m/s in 3 seconds. What is its acceleration?
4 m/s2
500
The force that opposes motion between two surfaces that are touching.
What is friction?
500
If you apply 50 N of force to move a box 4 meters in 2 seconds, the power is this.
What is 100 Watts?
500
When equal forces act on an object in opposite directions, the forces are described this way.
What are balanced?
500
A 10 kg object is pushed with 50 N of force across a surface where 20 N of friction acts against the motion.
Calculate the object’s acceleration.
What is 3 m/s2?
600
This number in meters is equal to 50 km.
What is 50,000 m?
600
Two men have the same weight and start at the bottom of a building.
One climbs to the top using a spiral staircase, while the other walks up a long ramp.
Both reach the same vertical height.
Describe the work done by both men.
What is the work done by both men are the same?