STAAR Science 2024
Authored by Lisa Thompson
Science
8th Grade
NGSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
What is the net force?
3 N
3 N, right
17 N, right
3 N, left
Answer explanation
The net force is the vector sum of all forces acting on an object. In this case, the net force is 3 N directed to the right, making '3 N, right' the correct choice.
Tags
NGSS.MS-PS2-2
2.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
What is the net force?
20 N
0 N
400 N
40 N
Answer explanation
The net force is the vector sum of all forces acting on an object. If the forces balance out, the net force is 0 N. However, if there is a resultant force of 40 N in one direction, that is the net force.
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-1
3.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
A ____________ is a push or a pull on an object.
friction
force
magnet
gravity
Answer explanation
A force is defined as a push or pull acting on an object. Friction, magnet, and gravity are types of forces, but the term that directly fits the definition in the question is 'force'.
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-1
4.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Which liquid is the least dense?
Oil
Water
Syrup
Plastic bottle
Answer explanation
Oil is less dense than both water and syrup, making it the least dense liquid among the options provided. This is why oil floats on water.
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
Tags
NGSS.MS-PS2-2
6.
DROPDOWN QUESTION
1 min • 4 pts
change occurs when a substance changes in appearance, such as dissolving. change occurs when a new substance is formed, with evidence being precipitate formation.
Physical
Chemical
Electrical
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
I am only dull.
Metals
Nonmetals
Metalloids
Answer explanation
Nonmetals are typically dull in appearance, unlike metals which are shiny. Metalloids can have mixed properties, but the statement 'I am only dull' clearly aligns with nonmetals.
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