
Milestone Science
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 • 1 pt
Which of the following best describes the velocity of an object?
30 m/s
30 m/s east
30 m/s2
30 m
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the difference between the velocity and speed of an object?
Velocity is the change in distance over time, while speed is the change in velocity over time.
Velocity has a direction associated with it, while speed has no specific direction.
Velocity is the change in speed over time, while speed is the change in distance over time.
Velocity has no direction associated with it, while speed has a specific direction.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The most penetrating type of radiation is the _______.
beta particle
gamma ray
uranium
alpha particle
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
gas
plasma
liquid
solid
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Most matter ____ when heated.
expands
contracts
condenses
solidifies
Tags
NGSS.MS-PS1-4
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
As a sample of matter is heated, its particles ____.
are unaffected
Move more quickly
stop moving
move more slowly
Tags
NGSS.MS-PS1-4
NGSS.MS-PS3-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In this model, which particle determines the reactivity of this atom?
Particle W
Particle X
Particle Y
Particle Z
Tags
NGSS.MS-PS1-1
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