Motion & Graphing
This measurement describes how far an object has traveled, regardless of direction.
What is distance?
The force that pulls objects toward one another.
What is gravity?
This law explains why a passenger lurches forward when a car stops suddenly.
What is Newton's First Law?
A statement that can be tested through investigation.
What is a hypothesis?
A push or a pull on an object.
What is a force?
A car moves 100 m east. This quantity includes both distance and direction.
What is displacement?
Name the two factors that affect the gravitational force between two objects.
What are mass and distance?
The tendency of an object to resist changes in motion.
What is inertia?
Why do scientists perform multiple trials?
What is to improve reliability and check consistency of results?
The friction that occurs between two surfaces that are not moving relative to each other.
What is static friction?
On a distance-time graph, the slope tells you this quantity.
What is speed?
If the distance between two objects increases, what happens to the gravitational force?
What is the gravitational force decreases?
Newton's Second Law is summarized by this equation.
What is F = ma?
In an experiment testing fertilizer type, the fertilizer being changed is called this.
What is the independent variable?
The friction acting when two surfaces slide past each other.
What is kinetic friction?
A runner travels 80 meters in 10 seconds. Calculate the runner's speed.
What is 8 m/s?
A planet has stronger gravity than Earth. How would an astronaut's weight compare on that planet?
What is the astronaut would weigh more?
A force of 24 N acts on a 6-kg object. What is the object's acceleration?
What is 4 m/s²?
Scientific models are useful because they help scientists do this.
What is explain, visualize, or predict scientific phenomena?
A skydiver moving through air experiences this type of friction.
What is fluid friction (air resistance)?
A velocity-time graph shows a horizontal line above zero. What does this indicate about the object's motion?
What is constant velocity (constant speed, no acceleration)?
Two identical objects move twice as far apart. Predict what happens to the gravitational attraction between them.
What is the attraction becomes much weaker (1/4 as strong)?
When you push backward on the ground while walking, the ground pushes you forward. Which law explains this?
What is Newton's Third Law?
In a controlled experiment, why should all variables except one remain the same?
What is so the effect of the tested variable can be determined?
A box experiences a 60 N force to the right and a 35 N force to the left. What is the net force?
What is 25 N to the right?