Scientific Method
What is the first step of the scientific method?
What is "Ask a question"?
What is the formula for speed?
What is "speed equals distance divided by time"?
-or-
What is "s = d/t, where s is speed, d is distance, and t is time"
What is the SI unit of time?
What is the second?
What is the force that opposes motion between two surfaces in contact?
What is friction force?
What is the formula for momentum?
What is p = mv (momentum equals mass times velocity)?
What term describes a testable explanation for an observed phenomenon?
What is a hypothesis?
What is the term for the rate of change of velocity?
What is acceleration?
What unit is used to measure force?
What is the newton?
What is the force of attraction between objects due to their masses?
What is gravity?
What type of collision conserves both momentum and kinetic energy?
What is an elastic collision?
In an experiment, what is the variable that is changed or controlled?
What is the independent variable?
What is the term for motion along a straight path?
What is linear motion?
What is the base unit for mass in the metric system?
What is the gram?
What is the formula for Newton’s Second Law of Motion?
What is F = ma (force equals mass times acceleration)?
If a 2 kg object moves at 3 m/s, what is its momentum?
What is 6 kg·m/s?
What is the name for a detailed, repeatable process used to gather data in experiments?
What is a procedure?
If an object travels 60 meters in 3 seconds, what is its average speed?
What is 20 m/s?
What is the derived unit for work or energy?
What is the joule?
What type of force is responsible for keeping an object in circular motion?
What is centripetal force?
What does the "impulse-momentum theorem" state?
What is "Impulse equals the change in momentum"?
-or- What is "A net force applied over time to an object, results in a proportional change in the object's momentum."?
What step of the scientific method involves determining if the data supports the hypothesis?
What is "Analyze results"?
An object is thrown straight up with an initial velocity of 10 m/s. What is its velocity at its highest point?
What is 0 m/s?
What is the SI unit of momentum?
What is "kilogram meters per second" or "kg·m/s"?
A 5 kg object is pushed with a force of 20 N. What is its acceleration?
What is 4 m/s²?
Two skaters push off each other. Skater A (50 kg) moves at 2 m/s, and Skater B (40 kg) moves at what velocity in the opposite direction?
What is 2.5 m/s?