Comp Sci 2 Review

Review of Quarter 1 for Quarterly Assessment tomorrow.


Quarterly Assessment is a grade.

Match

How does the amount of fertilizer affect how many potatoes a plant produces?

• control

• dependent variable

• independent variable

type of soil

how many potatoes

amount of fertilizer

• type of soil

• how many potatoes

• amount of fertilizer

Multiple Choice

Ryan is testing golf balls. He drops three different brands of balls from 40 cm and measures how high they bounce. He drops each ball 10 times.

• repetition
• replication

Multiple Choice

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more than one
• It keeps the experiment fair and you can see what caused the change
• It is what has always been done
• It makes the results better in an experiment

Multiple Choice

Scientific Laws are more powerful and mean more than Scientific Theories

• True

• False

Multiple Choice

Scientific knowledge continues to expand as new discoveries are made. Which of the following has played the most significant role in advancing scientific knowledge about cell biology?

• triple-beam balance
• syringe
• microscope
• pie chart

Multiple Choice

The nature of science is that it is open to new ideas. If this were NOT true, what might happen?

• When an idea was supported by evidence, scientists might ignore new contradictory evidence.
• Scientists would propose ideas to revise accepted hypotheses about nature.
• The scientific process of hypothesizing and experimentation would continue just as it is.

Multiple Choice

Magnetic is a

• Contact Force

• Non-contact Force

Multiple Choice

Air resistance is a

• Contact Force

• Non-contact Force

Multiple Choice

Friction is a

• Contact Force

• Non-contact Force

Multiple Choice

What statement is true?

• Mass never changes. Weight does.

• Weight never changes. Mass does.

• Both mass and weight change because they are affected by gravity.

• Neither mass nor weight change. They are always the same.

Match

Match the following

Stopped

Accelerating

constant speed

Slow

• Stopped

• Accelerating

• constant speed

• Slow

Multiple Choice

Match the description to the graph:

"The car is coming back."

Multiple Choice

An object moves through space with balanced forces acting on it. Which statement best describes the speed and

direction of the object as long as the forces acting on it remain balanced.

• The sped and direction of the object will both change.

• The speed and direction of the object will remain constant.

• The speed will change, but the direction will remain constant.

• The speed will remain constant, but the direction will change.

Multiple Choice

What is the net force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

Multiple Choice

The diagram below shows forces acting on a model airplane. Both its speed and height above the ground are constant. Which of the following conditions would cause the model airplane to descend toward the ground?

• The lift is equal to the drag.

• The lift is less than the weight.

• The thrust is equal to the weight.

• The thrust is greater than the drag.

​Potential Energy

​What are the energy transfers?

Multiple Choice

A student heats water as shown in the diagram below.

What sort of energy transformation is taking place?

• Electrical energy transforms to heat

• Heat moves from a cooler object to a warmer one

• Light energy transforms to heat

• Kinetic energy transforms to potential energy

Multiple Choice

Which of the following is the best example of chemical energy being transformed into light energy and heat energy?

• boiling water on an electric stove

• turning on a battery powered flashlight

• watching a movie on television

• using a solar panel to charge batteries

Multiple Choice

Which pair of Earth’s spheres interact the most when ocean waves break onto a beach?

• atmosphere and biosphere

• geosphere and atmosphere

• hydrosphere and biosphere

• geosphere and hydrosphere

Multiple Choice

When plants draw nutrients from the soil, the interaction is between which two spheres? 

• The atmosphere and the geosphere 
• The geosphere and the hydrosphere 
• The hydrosphere and atmosphere 
• The biosphere and the geosphere 

Multiple Choice

Which layer of the atmosphere do we live in? (click to enlarge picture)

• Thermosphere

• Mesosphere

• Stratosphere

• Troposphere

Multiple Choice

What property is used to divide the layers of the atmosphere? (click to enlarge picture)

• Air pressure

• Temperature

• Type of gas