Force Weight Mass Calculations

Quiz
•
Science
•
8th Grade
•
Hard
+2
Standards-aligned
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 800N man is playing on a seesaw with son who has a weight of 200N. If the child is sitting 3 meters away, how far will the man have to sit to balance the seesaw?
0.75m
3m
1.5m
1m
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the diagram above, two masses, one with mass m, the other with mass M = 2m are resting on a uniform plank of length L that pivots at its midpoint. If the mass m is at the far end of the plank, how far away from the pivot should the mass M be to balance the plank in a horizontal position shown?
L/2
L/3
L/4
L/6
Tags
NGSS.MS-PS2-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the distance the masses on the right of the fulcrum need to be to balance with the two masses on the left?
.65 m
.56 m
.79 m
.39 m
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A state of equilibrium is also seen below. Each of the cars weighs the same 9800 N. Despite the fact that there is only one car on the left-hand side that is 9 m from the fulcrum, the torques balance because, the cars on the right-hand side, are ____meters from the fulcrum.
4.5 m
3 m
1 m
2 m
Tags
NGSS.MS-PS2-4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A seesaw is unbalanced with two people of different masses sitting equal distances from the center. Which of the following will result in equilibrium?
The larger person moving further away from the center.
Moving the smaller person closer to the center.
Moving the smaller person further from the center.
Making the larger person do nothing.
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
6.
MULTIPLE SELECT QUESTION
1 min • 1 pt
If a system is in static equilibrium, it must have the following 2 conditions:
∑τ=0
Constant acceleration
∑F=0
Positive forces only
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Determine the net force required to accelerate a 540-kg ultralight car at 2.7 m/s2. use the correct formula
1458 N
200 N
55 N
1987 N
Tags
NGSS.MS-PS2-2
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