Midterm 24-25 Study Guide

Flashcard
•
Science
•
7th Grade
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is friction?
Back
Friction is a force that opposes the motion of an object. It occurs when two surfaces come into contact with each other.
2.
FLASHCARD QUESTION
Front
What does it mean for an object to be in motion?
Back
An object is in motion if it changes its position relative to a reference point over time.
3.
FLASHCARD QUESTION
Front
What is work in physics?
Back
Work is done when a force causes an object to move. It is calculated as the product of the force and the distance moved in the direction of the force.
4.
FLASHCARD QUESTION
Front
What is displacement?
Back
Displacement is the shortest distance from the initial to the final position of an object, along with the direction.
5.
FLASHCARD QUESTION
Front
What indicates a chemical change has occurred?
Back
The production of bubbles is a common indicator of a chemical change.
6.
FLASHCARD QUESTION
Front
What is an element?
Back
An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen and carbon.
7.
FLASHCARD QUESTION
Front
What is the chemical formula for ammonium acetate?
Back
The chemical formula for ammonium acetate is NH4C2H3O2.
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