Air resistance
Air resistance is a type of ______ force because it happens when two things touch.
What is a contact force?
This law says objects stay at rest or keep moving unless acted on by a force.
What is Newton’s First Law (Law of Inertia)?
A push or pull on an object.
What is a force?
Friction always acts in the ______ direction of motion.
What is the opposite direction?
The first step in the scientific method where you wonder about something or ask a question.
What is stating the problem or asking a question?
The faster something moves, the ______ air resistance it has.
What is more?
This law says force equals mass times acceleration.
What is Newton’s Second Law?
The energy of motion.
What is kinetic energy?
A rough surface creates ______ friction than a smooth surface.
What is more?
A possible answer or prediction to your question — something you can test.
What is a hypothesis?
A parachute helps slow a skydiver by increasing this.
What is air resistance?
When you push on a wall and it pushes back, this law is shown.
What is Newton’s Third Law?
When two objects hit each other.
What is a collision?
Adding oil or grease between moving parts reduces this.
What is friction?
The part of an experiment you change on purpose to test your hypothesis.
What is the independent variable?
A flat sheet of paper and a crumpled one are dropped at the same time. The flat one falls slower because it has more of this.
What is air resistance?
You’re riding your skateboard and suddenly hit a rock. You stop, but your body keeps moving forward. Which law does this show?
What is Newton’s First Law?
When an object bends or changes shape from a force.
What is deform?
This type of friction happens when something rolls over a surface, like a wheel.
What is rolling friction?
The part of an experiment that responds or changes because of what you tested.
What is the dependent variable?
In the coffee filter lab, when you stack more coffee filters together, they fall faster. Why?
What is because the greater weight (gravity) is stronger than the air resistance?
A balloon zooms forward when you let the air out of it. Which law is this an example of?
What is Newton’s Third Law?
Air pushes up on falling objects.
what is air resistance
These are the four main types of friction.
What are static, sliding, rolling, and fluid friction?
Question: These are the main steps of the scientific method — name them in order.
Answer: What are 1. Ask a question, 2. Do background research, 3. Make a hypothesis, 4. Test with an experiment, 5. Analyze data, and 6. Draw a conclusion?