What is the difference between speed and velocity?
Forces and Motion Lesson 1 & 2 Review

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Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.
2.
FLASHCARD QUESTION
Front
What is acceleration?
Back
Acceleration is the rate of change of velocity of an object. It can occur when an object speeds up, slows down, or changes direction.
3.
FLASHCARD QUESTION
Front
What is a contact force?
Back
A contact force is a force that occurs when two objects are physically touching each other.
4.
FLASHCARD QUESTION
Front
What unit is used to measure distance?
Back
Kilometers (km) is a unit used to measure distance.
5.
FLASHCARD QUESTION
Front
What are unbalanced forces?
Back
Unbalanced forces are forces that cause an object to accelerate in the direction of the net force acting on it.
6.
FLASHCARD QUESTION
Front
What is the formula for calculating speed?
Back
Speed = Distance / Time.
7.
FLASHCARD QUESTION
Front
What is the role of friction in motion?
Back
Friction is a force that opposes the motion of an object, acting in the opposite direction to the movement.
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