Unit 1 Test Part A Flashcards
Flashcard
•
Science
•
6th Grade
•
Practice Problem
•
Easy
Xzayden X Maximillian May
Used 1+ times
FREE Resource
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9 questions
Show all answers
1.
FLASHCARD QUESTION
Front
An earthquake knocks both a dictionary and a comic book from the top shelf of a bookshelf. The dictionary has a greater mass than the comic book. Both books are knocked off the shelf at the same time. What can be said about the gravitational potential energy of the two books?
Back
The dictionary had greater gravitational potential energy than the comic book because it had a greater mass.
Answer explanation
The gravitational potential energy (GPE) is given by the formula GPE = mass × gravity × height. Since the dictionary has a greater mass and both books fell from the same height, the dictionary had greater GPE.
2.
FLASHCARD QUESTION
Front
If an equal force acts on each of the following objects, which will have the greatest acceleration? Options: A bowling ball, a basketball, a golf ball, a baseball.
Back
A golf ball.
Answer explanation
Acceleration is inversely proportional to mass (F=ma). The golf ball has the least mass among the options, so with the same force applied, it will experience the greatest acceleration compared to the bowling ball, basketball, and baseball.
3.
FLASHCARD QUESTION
Front
Forces of 50 Newtons and 30 Newtons are applied to an object in opposite directions. Which direction will the object move?
Back
It will move to the right. (→)
Answer explanation
The object experiences a net force of 20 Newtons to the right (50N - 30N). Since the net force is in the right direction, the object will move to the right.
4.
FLASHCARD QUESTION
Front
What causes a basketball to slow down after being rolled down the court?
Back
Friction
Answer explanation
The basketball slows down due to friction between the ball and the court. Friction opposes the motion, causing the ball to lose speed over time.
5.
FLASHCARD QUESTION
Front
A car is traveling at 80 miles per hour and suddenly comes to a stop. As a result, the passenger in the car will
Back
move forward
Answer explanation
When the car stops suddenly, the passenger's body continues moving forward due to inertia. This is why the correct answer is that the passenger will move forward.
6.
FLASHCARD QUESTION
Front
This is an example of Newton's
Back
Third
Answer explanation
This is an example of Newton's Third Law, which states that for every action, there is an equal and opposite reaction. This principle explains the interaction of forces between objects.
7.
FLASHCARD QUESTION
Front
What happens to the gravitational potential energy of an object as it is raised higher above the ground?
Back
The gravitational potential energy increases as the object is raised higher.
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