CEA Class:8

Quiz
•
Science
•
8th Grade
•
Medium
PK Klose
Used 4+ times
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The efficiency of idle (perfect) machine is:
Always less than 100%
Equal to 100%
Always more than 100%
Always 50%
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
On which direction does liquid exerts pressure?
Only upward
Only downwards
In all directions
Only on lateral sides
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which clock measures the accurate time?
Atomic clock
Sand clock
Digital clock
Pendulum clock
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
One day is equal to how many seconds:
3600 seconds
48600 seconds
86400 seconds
864080 seconds
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Formula to calculate momentum is:
P=m×v
P=g×h
P=hdg
P=F:A
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which law of Newton does the launching of rocket works:
First
Second
Third
Fourth
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which of the following consists of kinetic energy?
Burning coal
Running water
Light bulb
Ringing bell
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