WorksheetsStars, constellations and Gravity
Total questions: 20
Worksheet time: 15mins
Stars are made of mostly which two gases?
Hydrogen and Helium
Hydrogen and Oxygen
Hydrogen and Nitrogen
Hydrogen and Carbon
Stars release energy in the form of heat and light thanks to a process called ___________.
nuclear fusion
supernova
luminosity
spectroscopy
The absolute magnitude of a star is defined as…
mass of a star
color of a star
brightness of a star, as it appears from Earth
brightness of a star independent from the distance of Earth
Felix examined several photos of stars. To compare their temperatures, he looked at the colors of the stars. He organized the photos in order from coolest to hottest. Which of these answers shows the correct order?
red, yellow, white, blue
white, blue, yellow, red
yellow, white, blue, red
blue, yellow, white, red
When the sun starts to die it will first turn into a _____ .
white dwarf
red giant
red supergiant
black hole
A group of visible stars that form a pattern in the sky are called...
galaxies
constellations
meteors
shooting stars
The sky is divided into ____ official constellations.
11
22
44
88
People in the Northern Hemisphere see the same constellations as the people in the Southern Hemisphere.
True
False
Circumpolar constellations can be seen____.
Throughout the entire year
Only during one season of the year
On 3 out of 4 seasons of the year
For half of the year
Ursa Major (Larger Bear) has this asterism in its pattern
the Little Dipper
the Big Dipper
Orion's Belt
The Southern Cross
Which of the following is not a way that constellations could be used __
as a navigation tool
as a calendar to assist in when to plant and harvest crops
as inspiration for myths and legends
as evidence of life in the universe
Polaris always points
East
West
North
South
What is the equation for the Universal law of gravitation ?
G=F ⋅ m1⋅m2/r2
F=G ⋅ m1⋅m2/(r)2
F=G ⋅ r2/m1⋅m2
G=F ⋅ r2/m1⋅m2
Two factors affecting the magnitude of the force of gravity between 2 objects are...
mass and distance
mass and matter
distance and weight
weight and mass
Complete the following statement: The farther away two planets are the _______ the gravitational force between them.
more
same
less
If I double the mass of one of the objects, but don't change anything else... What happens to the gravitational force between two objects?
Doubles
Quadruples
Cut in Half
4x Smaller
The satellite is orbiting Earth in the direction shown and is pulled toward Earth by gravity. What would happen if Earth's gravity suddenly disappeared?
The satellite would fall to Earth.
The satellite would stop moving.
The satellite would continue to orbit Earth.
The satellite would move into space in a straight line.
