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Worksheetsclass 5 Q1
Total questions: 40
Worksheet time: 21mins
Evaporation is the change of state from ___________ to __________
liquid to gas
solid to liquid
gas to liquid
Evaporation takes place at any temperature
True
False
Air contains water vapour
True
False
Ali pours water into a glass dish. He leaves the dish in a warm place for 8 days. After 8 days, there is less water in the dish. Why does the dish contain less water?
The water evaporated
The water froze
The water condensed
Evaporation happens
throughout the liquid
at the surface of a liquid
Which of the the following does not affect the rate of evaporation?
Time
Wind
Surface area
Temperature
What is the boiling point of water
0 C
100 C
273 C
50 C
What is happening at the boiling point?
liquid to gas
solid to liquid
gas to liquid
liquid to solid
No bubbles are formed.
boiling
evaporation
Happens throughout the liquid
boiling
evaporation
Evaporation is slower when a liquid is boiling.
true
false
Condensation
A gas changes into a liquid
A liquid changes into a gas
A solid changes into a liquid
A liquid changes into a solid
Condensation is the opposite of evaporation.
True
False
Does the shape of the container affect evaporation?
Yes
No
What do we call the material (solid) that is dissolved?
The solute
The solvent
What do we call the liquid in which the material (solid) dissolves?
The solute
The solvent
Formation of clouds, dew, snow are examples of ___
condensation
evaporation
Drying clothes in sunlight is the example of ______
condensation
evaporation
Which one is a solution
Salt and water
paint
pizza
Mustard
A substance that is formed as the result of a chemical reaction is a __________________
Product
Reactant
Starters
Enders
It does not take long for plastic to decay.
True
False
It may take decades, even centuries, for plastic to breakdown in the ocean.
True
False
Why was plastic invented?
It was invented so that we could have a material that lasted a long time and we didn't have to hunt animals.
It was invented so make pretty things.
It was invented because scientists were bored.
What was one of the great things about plastic?
It was easy to make a lot of plastic.
It wasn't dangerous.
It didn't cause problems.
How do they make plastic?
Combine leftover oil and acid
Combine oil and sand
Combine oil and water.
Combine oil and butter.
Is plastic always a BAD thing?
Yes
No, it can be very helpful for making strong, long lasting things.
A contact force is from
objects physically touching
far apart objects
not touching object
always a pull
The force between the phone and the mount is a
contact force
non-contact force
When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.
increased
unbalanced
balanced
decreased
You push a box 35 N to the right. Your friend pushes the box 25 N in the same direction. What is the net force?
60 N balanced to the right
60 N unbalanced to the right
10 N balanced to the right
10 N unbalanced to the right
What are force vectors?
shows the net force of an object
show the mechanical energy of an object
shows the direction and size of the force
shows the way an object reflects light
What is the net force of this object?
400 F arrow downward
400 F arrow upward
800 F arrow upward
800 F arrow downward
What is the net force?
28 N unbalanced
14 N unbalanced
14 N balanced
net force of 0
Weight is _________.
the quantity of matter in an object.
the measure of an object's inertia.
the force exerted by gravity on an object's mass.
equal to the mass of an object.
Weight is constant.
True
False
