Scientific Method
Gathering data using your five senses.
Observation
What is a force?
Simply a push or pull on an object.
What is an inference?
A conclusion based on an observation.
A force that requires to pieces of matter to touch is known as a
contact force
Twix
This step of the scientific method is a guess or prediction of what you think will happen in the experiment.
Hypothesis
What are the two types of forces?
Contact and Non-Contact forces
Is the following statement an inference or an observation. "The gummy bear got larger when placed in sugar water."
Observation
A force that results when two materials rub together and prevent sliding.
Friction
The unit for force is
Newtons
What part of the scientific method collects information through experimentation to draw a conclusion.
Collecting and Analyzing Data
True or False: Forces always move an object.
False: If the force is balanced, the object will not move.
Identify each statement as inference or observation.
1. The plant did not get enough water.
2. The leaves on the plant are turning brown.
1. Inference
2. Observation
Name 3 types of non-contact forces.
Gravity, electric forces, magnetic forces
Gravity ________ to the center of the earth.
pulls
What part of the scientific method comes after a question has been asked?
Research
Every force has what two factors?
Strength/magnitude. Direction
Give an observation about this classroom.
Give an inference about this classroom.
Ex. The classroom has a lot of materials in it.
This classroom is used by many students each day.
What are 3 forces that might affect a rock as it falls down a hill?
Gravity, Air Resistance, Friction
What sport did Mrs. Taylor play in college?
Swimming
A hypothesis is written in what form?
If______ then______ because _________
I think __________ because__________
If Mrs. Taylor is pulling a rope with 8N of force to the left and Mr. Dawson is pulling the rope with 6N of force to the right, what way will the rope move? What is the net force?
Left - 2N of force in Mrs. Taylor's direction
Give the definition of an observation and an inference.
Observation: Using your 5 senses to gather information.
Inference: Making a conclusion based on your observations.
As an object moves away from Earth, what happens to its weight? Why?
It weights less and less because the pull of Earth's gravity becomes weaker and weaker with distance.
How many years has Mrs. Taylor been teaching?
Hint: It's greater than 10, less than 19
Lucky Number 13!!