Show:
Sci terms/method
Units, dist/disp
Velocity/speed and acceleration
Newton's laws
100

Which is the variable you change?

Independent variable

100

A person runs down a soccer field 50m then turns around and runs back up the field for 30m. What is their distance?

80m
100

What is the difference between speed and velocity?

Speed is distance over time (how fast something is going). Velocity is speed with direction

100

Which of Newton's laws is referred to as the law of inertia?

Newton's first law: An object at rest will remain at rest unless acted on by an unbalanced force.

200

What the constant variable?

A constant variable remains the same in each trial

200

Convert 850g to kg. 

0.85kg

200

A dog takes 6s to run 12m. What is its speed?

2 m/s

200

When a 3kg baseball is hit by a bat, it experiences an acceleration of 50 m/s2. What is the net force on the baseball?

150N

300

What is the step after developing testable predictions? 

Gathering data

300

Convert 0.89daL to liters.

8.9L

300

What belongs on each axis of a speed-time lab? How do you find the acceleration between two points?

Time belongs on x-axis. Speed belongs on y-axis. The acceleration is the slope (rise/run)

300
What is the acceleration of an 7kg object that experiences a net force of 56N?

8 m/s2

400
A scientist tests the effect of sunlight on people's moods by changing the amount of sunlight that people are exposed to and test their moods. Name the IV and DV.

IV: amount of sunlight

DV: moods of people

400

A car drives 85 m east then does a U-turn and drives 53 meters west. What is the displacement of the car?

32 m east

400

A train starts at rest and then reaches a velocity of 27 m/s in 9s. What is the acceleration?

3 m/s2

400

You are sitting in your chair and exert 690N of force on it. What force is your desk chair exerting on you?

690N

500
What is the difference of scientific theory and scientific law?

A scientific theory is a "how" or "why"--a well-supported explanation

A scientific law is a "what"--an observation about nature that always seems to hold true

500

A person walks north down a hallway for 16m, turns around and walks south 8m, then walks back 3m. What is their distance and displacement?

Distance: 27m

Displacement: 11m

500

If a swimmer is moving at a speed of 4 m/s, how many meters will they swim in 30 seconds?

120m

500

Write out all three of Newton's laws of motion.

1st law: An object will maintain its state of motion unless acted on by an outside force.

2nd law: The acceleration of an object is in the same direction as and proportional to the net force exerted on the object.

3rd law: Every action force has an equal and opposite reaction force.