According to the principles of physical and chemical changes, a substance in its physical state tends to remain in that state and a substance undergoing a chemical change tends to continue the reaction unless acted upon by an external condition. True or False?

3rd 9 weeks Physics Test for 8th Grade

Quiz
•
History
•
10th Grade
•
Hard
Elizabeth Salazar
Used 1+ times
FREE Resource
31 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
False
Maybe
True
Sometimes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating work done when pushing a block across the floor?
Work = Force x Distance
Work = Mass x Acceleration
Work = Velocity x Time
Work = Energy x Power
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the SI unit of electric current used in charging a smartphone?
C
D
B
A
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of change is burning of wood?
Physical change
Chemical change
State change
Mechanical change
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the process called when heat is transferred from a hot pan to an egg, cooking it, through direct contact?
induction
radiation
convection
conduction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the smallest unit of matter that retains the properties of an element during physical and chemical changes?
molecule
cell
nucleus
atom
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of a chemical change?
Boiling water
Dissolving sugar in water
Crushing a can
Burning wood
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