Scientific Method
Energy
Motion
Newton's Laws
Other
100
What is an educated guess?
Hypothesis
100
Potential energy is ________ energy.
Stored
100
Which will hit the ground first in a vacuum? :quality(75)/curiosity-data.s3.amazonaws.com/images/content/thumbnail/standard/1ab8c40d-f4f3-463a-8e13-ecf604a3aeb1.png)
With no air resistance, they will hit the ground at the same time.
100
_______________ is an object's resistance to change in motion.
Inertia
100
What describes a change in distance over time?
Speed or velocity
200
Which variable does the experimenter manipulate?
Independent Variable
200
True of false?
A ball has zero kinetic energy just before it is dropped
True
200
What is the difference between distance and displacement?
Distance is the total length traveled between two points. Displacement is the direction of motion from starting point to end point. 
200
For every action, there is an equal and opposite reaction. This is Newton's __________ Law.
3rd
200
What describes a change in velocity over time?
Acceleration
300
During an experiment, these types of variables stay the same
Constants
300
As a ball falls to the ground, it loses potential energy. Is energy destroyed? Why or why not?
No, it is converted into kinetic energy. This follows the law of conservation of energy. Energy is neither destroyed nor created.
300
A car is driving at a constant speed in a circle. Is the car accelerating?
Yes. A car accelerates when it changes direction or speed.
300
Newton's 2nd Law states that force is the product of mass and _____________.
Acceleration
300
Is it possible for a car to travel a large distance but have zero displacement?
Yes, if it's starting and ending point are the same.
400
What would be your hypothesis based on the following observation: Crickets chirp less frequently when it's cold outside. (if then statement)
If one lowers the temperature, then crickets will chirp less frequently.
400
A weightlifter holds a barbell above her head. Is she doing any work?
No. In order to do work, the barbell must move. work=force x distance
400
Velocity, displacement, and acceleration are all examples of _____________ because they have magnitude and direction.
Vectors
400
True or False? If the same force is applied, but the mass of the object increases, the acceleration will be the same. (F=ma)
False. The acceleration will decrease.
400
Is it possible for an object to fall with zero acceleration?
Yes, when it has reached terminal velocity. When the downward force gravity is matched by the upward force of air resistance, there is zero net force, and therefore zero acceleration.
500
If the data does not support your hypothesis, what should you do?
Re-do the experiment to make sure you didn't make any errors.
Redesign the experiment.
Revise the hypothesis.
500
When would an object have both zero potential energy (relative to the ground) and zero kinetic energy?
When it is on the ground and not moving
500
True or false: A bullet fired from a gun lands on the ground at the same time that a bullet is dropped from the same height.
True. Accleration due to gravity is the same for an object that experiences projectile motion or is dropped from the same height.
500
An object will continue at the same speed and in the same direction unless a ______________ is applied.
Force
500
An object is at rest, speeds up, travels at a constant speed, then slows down to a stop. During the trip, the object travels in a straight line.
When is the object accelerating?
When is it not accelerating?
The object is accelerating when it speeds up and slows down.
The object is not accelerating when it is at rest, travels at a constant speed, and when it stops.