8th grade 1st 9 weeks (science)
Quiz
•
Science
•
8th Grade
•
Hard
+4
Standards-aligned
Sabrina Helm
Used 17+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
A ball starts from rest. It rolls down a ramp and reaches the ground after 4 seconds. Its final velocity when it reaches the ground is 7.0 meters/second.
The initial velocity of the ball is ___ meters/second, and its acceleration is ___ meters/second2
0, 1.75
1.75, 0
4, 7
7, 4
Tags
NGSS.MS-PS3-1
NGSS.MS-PS3-5
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
An airplane is flying at a constant speed in a positive direction. It slows down when it approaches the airport where it's going to land. Which term describes the slowing of the plane?
stationary
positive velocity
positive acceleration
negative acceleration
constant velocity
Tags
NGSS.MS-PS3-5
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Andrew pokes a marble, and the marble rolls down a ramp. The marble moves with speed. Which forces are acting on the marble in this situation?
When Andrew pokes the marble, he gives it ___ force
an applied
a tension
a friction
a gravitational
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
As the marble rolls down the ramp, ___ force pulls it down.
tension
normal
gravitational
pressure
Tags
NGSS.MS-PS2-4
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The movement of the marble is slowed down by gravitational forcefrictionelastic force from the ramp.
force
friction
elastic
gravity
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Kae'Shawn throws a basketball at the gym floor. The ball bounces once on the floor and comes to rest in his coach’s hands. At which point are all the forces on the basketball balanced?
the moment the ball leaves Kae'Shawn's hand
the moment the ball touches the floor
when the ball is in the air
when the ball starts falling downward before coming to rest
the moment the ball comes to a complete rest
Tags
NGSS.MS-PS2-2
7.
FILL IN THE BLANK QUESTION
5 mins • 1 pt
Diana accidently dropped her toy stuffed animal from the balcony of her apartment on the fourth floor. The toy hit the ground at a velocity of 16.0 meters/second. At impact, it took 2.0 seconds for the toy’s velocity to reach 0 meters/second. If the toy has a mass of 0.25 kilograms, what's the force of the impact? Use F = ma, where a= (v-u)/t.
The force of the impact is ___ newtons.
Tags
NGSS.MS-PS2-2
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