24Comp 3 Review

Review of Quarter 1 for Quarterly Assessment tomorrow.


Quarterly Assessment is a grade.

Match

A student conducts an experiment in which she drops objects, each with a different mass, all from the same height. She uses a stopwatch and records the time it takes for each object to hit the ground. Match the variables for the experiment.

• Dependent Variable

• Controlled Variable

• Independent Variable

time the object travels

height at which object is dropped

mass of the object

• time the object travels

• height at which object is dropped

• mass of the object

Multiple Choice

In an appropriately designed experiment, a scientist is able to test the effect of

•  a single variable
•  multiple variables
•  the hypothesis
•  scientific observations

• Math

Multiple Choice

The law of universal gravitation states that both mass and distance of objects affect the gravitational force between them. Gravitational force increases as the mass of the objects increase. Gravitational force decreases as distance between the objects increases. Why are these statements considered scientific law, and not scientific theory?

• The statements tells what happens, and not why it happens.

• The statements involve mass and distance measurements.

• The statements explain the attractive force between two objects.

• The statements predict what will happen under certain conditions.

Multiple Choice

Scientific theories are based on

• general assumptions of how systems work.
• mathematical principles that can be proven true.
• large amounts of data collected over time.
• observations from within only one scientific discipline.

Match

match these types of energy with how they can be used

• Infrared

• Radio

• Microwaves

• Ultraviolet (UV)

• X-Rays

"seeing" the heat of a person or animal in the dark

music, communication

cooking

growing plants, tanning, cleaning

"seeing" inside the body (bones)

• "seeing" the heat of a person or animal in the dark

• music, communication

• cooking

• growing plants, tanning, cleaning

• "seeing" inside the body (bones)

Multiple Choice

Which has the LONGEST wavelength and, therefore, the lowest frequency/energy

• Gamma Rays

• Radio Waves

• Visible Light

• Infrared rays

Multiple Choice

A wave with a large wavelength will have a ______ frequency and _____ energy

• high, low

• high, high

• low, high

• low, low

Multiple Choice

What is transported by a wave?

• air

• energy

• matter

• particles

Multiple Choice

Sound waves cannot travel through _________.

• paper

• milk

• hydrogen

• empty space

Match

Match the following terms of Light Properties.

Refraction

Reflection of all visible light

Absorption of all visible light

• Refraction

• Reflection of all visible light

• Absorption of all visible light

​Apparent vs Absolute

Multiple Choice

Which statement describes stars from coolest to hottest?

• blue, white, red, orange
• white, yellow, orange, red
• orange, yellow, blue white
• red, orange, yellow, white, blue

Multiple Choice

Scientists have determined that the star on the left is actually much brighter than the star on the right. What may best explain this difference between observation and reality?

• Iota Canis Majoris must be much smaller than Sirius

• Sirius is much closer to Earth than Iota Canis Majoris

• Iota Canis Majoris must have been dimmer in the past

• Sirius must create a lot more visible light compared to Iota Canis Majoris

Multiple Choice

Which star has the lowest luminosity?

• A

• B

• C

• D

Multiple Choice

What is the layer of the Sun that we see when we look at it? (don't look at the Sun, it will hurt your eyes)

• Photosphere
• Core
• Radiative Zone
• Convection Zone
• Chromosphere

Multiple Choice

What is the hottest layer of the Sun?

• Core
• Radiative Zone
• Convection Zone
• Photosphere
• Chromosphere

Multiple Choice

Which sun feature is most dangerous to Earth?

• Sunspot
• Solar Flare
• Solar Prominece

Multiple Choice

In the image , what does X represent?

• 1 light-year

• 1 meter

• 1 year

• 1 AU

Categorize

Options (4)

Between Mars & Earth

Between Stars

Between Galaxies

Between Sun & the Moon

Organize these options.

Light Year

Astronomical Unit

There are ​billions of galaxies in our universe. Each galaxy contains billions of stars.

Multiple Choice

Galaxies are composed of (best answer)

• stars

• stars and gas

• stars, dust, and gas

• stars, dust, and gas held together by gravity

Reorder

Put these in order from largest to smallest

• Universe

• Galaxy

• Solar System

• Star

• Planet

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5