Force Work Power

Quiz
•
Science
•
6th - 8th Grade
•
Hard
+1
Standards-aligned
Charles Martinez
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
1) A person lifts a package weighing 75 N. If she lifts it 1.2 m off the floor, what work has she done?
90 J
62.5 J
6.25 J
900 J
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2) When 142 J of work is done in pushing a box horizontally 13.3 m, how much force is applied?
10.7 W
18,886 N
10.7 N
1,888.6 N
Tags
NGSS.HS-PS2-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3) What work is done when a person pushes a refrigerator weighing 720 N across a floor 12 m? (The force of friction between the refrigerator and the floor is 480 N.)
20 J
5,760 J
8,640 J
2,880 J
Tags
NGSS.MS-PS2-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4) A 5 kg block is pulled across a table by a horizontal force of 40 N with a frictional force of 8 N opposing the motion. Calculate the acceleration of the object.
0.15625 m/s2
6.4 m/s2
200 m/s2
320 m/s2
Tags
NGSS.MS-PS2-2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5) If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be the total acceleration?
5 m/s2
22,500 m/s2
4 m/s2
0.4 m/s2
Tags
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6) An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. What is the force on the object if acceleration of gravity on Earth is (g = 9.81 m/s²)?
3.06 N
294.3 N
294.3 N
0.327 N
Tags
NGSS.MS-PS2-2
NGSS.MS-PS2-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7) An object of mass 30 kg is in free fall in a vacuum where there is no air resistance. What is the force on the object on Mars?
Hint: Google “acceleration of gravity mars”
111.33 N
8.08 N
0.1237 N
8.08 J
Tags
NGSS.MS-ESS1-2
NGSS.MS-PS2-2
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