A 0.5kg ball is about to roll off the edge of a 1.5m tall table. What is its current potential energy?
g = 9.8ms2
EXERCISES FOR CONSTRUCTION OF KNOWLEDGE
Quiz
•
Physical Ed
•
10th Grade
•
Easy
Mai Nguyen
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 0.5kg ball is about to roll off the edge of a 1.5m tall table. What is its current potential energy?
g = 9.8ms2
13,33 J.
7,35 J.
14,7 J.
3,72 J.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two satellites in space, each with a mass of 2000 kg, are 1500 m apart from each other. What is the force of gravity between them? G = 6,67.10-11
3,12.10-1 N.
6,22.10-8 N.
8,87.10-10 N.
1,19.10-10 N.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 12kg box starts at rest and reaches a velocity of 3.45ms after traveling a distance 12m. What was the force on the box?
0,041 N.
0,496 N.
2,95 N.
5,95 N.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A rock is dropped in freefall from some initial height h. Which of the following describes its final velocity right before it hits the ground?
A
B
C
D
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A man stands at the top of a 21m tall building. He holds a 3.2kg rock over the edge. What is the potential gravitational energy of the rock? g =9,8 m/s2
658,56 J.
67,2 J.
77,2 J.
698,92 J.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Michael pushes a box 9m across the floor. If the box moves with a constant velocity, what is the total work done?
We need to know the force used to find the work.
We need to know the time to find the work.
0 J.
9 J.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Ryan pushes a 14 kg filing cabinet 2.1m across the floor, doing 88.2 J of work. How much force is he applying to the cabinet?
3 N.
13,23 N.
42 N.
9,80 N.
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