Space & Pressure Flashcards
What is weight measured in?
Newtons (N)
Equation for weight
Weight=mass x gravity
What is weight?
The effect of gravity on an object
What is mass?
How much matter is in an object
What is mass measured in?
Kilograms (kg)
Day?
One rotation about Earth’s axis. 24 hours
Moon?
Earth’s only natural satellite. It plays a crucial role in influencing Earth’s tides, stabilizing its axial tilt, and affecting its climate.
Sun?
Our solar system’s star. It releases energy that drives life processes. Plants absorb energy from the sun, use it in photosynthesis to make the glucose and oxygen all other living things depend on.
Planet?
In our solar system there are 8 planets. They orbit our sun.
Year?
The amount of time taken for a planet to fully orbit the Sun. A year on Earth is 365.25 days.
Satellite?
Object that orbits a planet or star.
Solar system?
A group of planets and smaller objects that orbit our nearest star called the Sun.
Constellation?
A group of stars that form a recognizable pattern in the night sky.
Light year?
Distance that light is able to travel in a year.
Universe?
Everything that exists.
Galaxy?
Huge collection of stars, planets, gas, and dust held together by gravity.
Milky way?
Our galaxy
Name the planets in order
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
The temperature of a planet _________ as its distance from the sun increases.
Decreases.
A yearly orbit of a planet _______ as its distance from the sun inreases
Increases
How can scientists find out about the solar system and universe?
-telescopes -radio waves
The force on other planets is ________ because they have a greater mass
Greater
The force of gravity ________ as you get further away from the surface of a planet.
Decreases.
Why does the earth experience seasons?
Because it is tilted.
