Vocabulary
Scientific Method
Variables
Investigations
Forces and Motion
100
A push or pull on something.
What is force?
100
The amount of steps in the scientific method.
What is 6 steps?
100
A variable that the scientist changes in an investigation.
What is the independent variable.
100
During an investigation students are dropping a marble down a ramp onto different materials. One material is card board, one is the marble floor, and the third is carpet.
What are the students testing?
How does different material (friction) affect the length of the marble's roll?
100
The measure of how much matter is in an object.
What is mass?
200
Force that acts on an object when it rubs against another object or material.
What is friction?
200
An "If, then." statement that is an educated guess.
What is a hypothesis?
200
A variable that changes as a result of another variable.
What is the dependent variable?
200
During an experiment students set up rows of dominos. One student pushes the first domino and that causes the rest of them to fall one by one.
What force are the students observing as the dominos fall over?
What is applied force (a push)?
200
In order to change the motion of objects, you would have to apply this.
What is force?
300
This exists when all the forces acting on an object result in the object staying at rest or moving at a constant speed in the same direction.
What is balanced force?
300
My hypothesis was incorrect because the toy car rolled farther on the glass material than it did on the card board.
What is a conclusion?
300
The height of the ramp.
What is the independent variable?
300
Give two surfaces that would cause a rolling toy car to take a longer time to travel from one end of a table to another compared to your desktop.
What are carpet, grass, gravel, cement, etc? (Materials that create more friction)
300
List the main non-contact forces that can cause objects to move.
What are gravity and magnetism?
400
a push or a pull that does not touch an object to change motion.
What is a non-contact force?
400
The correct order of all steps of the scientific method.
What is: purpose, research, hypothesis, investigation, results, and conclusion.
400
How far the car traveled.
What is the dependent variable?
400
Jackson was investigating the use of magnets to move objects. He observed that some objects moved toward the magnets without having to touch them. Jackson's observation can be described like this: The _______ ________ produced a ___-________ _________ that moves objects without touching.
What is magnetic force and non-contact force?
400
Name three contact forces that can cause an object to change motion. Be specific.
What is a kick, a push, a flick, bat hitting a ball, pulling something, throwing... etc.?
500
A change in position, speed, or direction.
What is motion?
500
The correct order of all steps of the scientific method and their definitions.
What is: purpose (the question), research (known information and materials), hypothesis (educated guess), investigation (the experiment), results (the outcome from the experiment), and conclusion (what you learned and if your hypothesis was correct/not correct).
500
An investigator tests whether the number of hours a student spends studying for a math exam changes their final test score.
The _________ is the independent variable.
The __________ is the dependent variable.
What is the number of hours? (independent)
What is the final test score? (dependent)
500
Bev thinks that a bowling ball will fall faster to the ground than the volleyball. Jack thinks that they will hit the ground at the same time. What is the best plan for Bev and Jack to test their ideas?
A. Measure the mass of a variety of balls to determine which ball will hit the ground first because it has more mass and heavier objects fall faster than lighter objects.
B. Roll the bowling ball and the volleyball off a desk or table and see which one hits the ground first.
C. Drop the bowling ball and the volleyball off a desk or table and see which one hits the ground first.
D. Measure the circumference of the bowling ball and the volleyball to determine which will hit the ground first.
What is C?
500
ou can describe an object sitting at rest on the ground as follows: The ______ of the object on the ground is _________ with the ________ of the ground on the object.
What is force, balanced, and force?