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WorksheetsSemester 1 test review
Total questions: 18
Worksheet time: 10mins
Which layer of the earth has the highest density?
Inner Core
Outer Core
Mantle
Crust
Which of the following correctly describes movement during convection?
Hot matter rises because it is denser.
Cool matter rises because it is heavier.
Hot matter rises because it is less dense.
Cool matter sinks because it is heavier.
How do we use earthquakes to find the composition of the earth's interior?
Earthquakes show where exact mantle convection is happening.
Earthquakes produce volcanoes.
Earthquakes produce fresh mantle materials that scientists can use.
Earthquakes produce seismic waves that turn and change in different materials.
Which of the following is NOT true about ocean and continental crust?
Oceanic crust is older near the continents.
Oceanic crust is younger near the midocean ridges.
Continental crusts are generally older than oceanic crust.
Continental crust constantly go through cycles of matter and become renewed.
What is Newton's 2nd law of motion?
p = mv
KE = 21 mv2
F = ma
PE = mgh
According to Newton's 2nd Law of motion, when mass stays the same, as acceleration increases, force (a) .
When the amount of force does not change, how does the change in mass impact acceleration?
Higher mass means lower acceleration.
Higher mass means higher acceleration.
Mass does not affect acceleration.
Acceleration changes mass.
You will get injured more by receiving a big amount of force for a short period of time than receiving a small amount of force for a long period of time.
True
False
What does the law of conservation of momentum state?
Energy cannot be created or destroyed.
Force is push or pull.
The total momentum before and after collision does not change.
Momentum is mass in motion.
How do you find the momentum of the truck before the collision?
3,000 kg x 10m/s
3,000 kg x 1,000 kg
3,000kg x 10 m/s2 x 10 m/s
1,000 kg x 0 m/s
What is the total momentum before the collision?
30,000 kg m/s
40,000 kg m/s
300 kg m/s
We do not have enough information to find the answer.
The total momentum before the collision was 30,000 kg m/s. What is the total momentum after the collision?
300,000 kg m/s
15,000 kg m/s
30,000 kg m/s
0 kg m/s
True or False
According to the law of conservation of energy, energy can only be transferred and transformed in a system.
True
False
Which point do we have the highest potential energy?
A
B
C
D
Which point do we have the highest Kinetic energy?
A
B
C
D
If the mass of the object is 1 kg, what is the potential energy at point A?
120 J
1,200 J
60 J
0 J
If the mass of the object is 1 kg, what is the potential energy at point C?
120 J
1,200 J
60 J
0 J
If the mass of the object is 1 kg, what is the total energy at point G?
120 J
1,200 J
60 J
0 J
