forces in space Flashcards
What is the difference between mass and weight?
Mass is the amount of matter in an object, while weight is the force exerted by gravity on that object.
True or False: Weight changes depending on the gravitational pull of the celestial body.
True
Fill in the blank: The gravitational force between two objects depends on their _____ and the distance between them.
masses
What is the primary force that keeps planets in orbit around the Sun?
Gravity
Which planet is known for having the most extensive ring system?
Saturn
Multiple Choice: Which of the following is NOT a terrestrial planet? A) Earth B) Mars C) Jupiter D) Venus
C) Jupiter
What is the term for a natural satellite that orbits a planet?
Moon
True or False: The Moon is the only natural satellite of Earth.
True
What force causes tides on Earth?
The gravitational pull of the Moon and the Sun
Fill in the blank: The _____ of an object is the measure of the gravitational force acting on it.
weight
Which planet is known as the ‘Red Planet’?
Mars
Multiple Choice: What is the largest planet in our solar system? A) Earth B) Saturn C) Jupiter D) Neptune
C) Jupiter
What is the main component of the Sun’s mass?
Hydrogen
True or False: All planets in our solar system have moons.
False
Fill in the blank: The four outer planets are known as _____ planets.
gas
What is the term for the path an object takes as it moves through space?
Orbit
Which force is responsible for the elliptical orbits of planets?
Gravity
Multiple Choice: Which of the following is the smallest planet in our solar system? A) Mercury B) Mars C) Venus D) Earth
A) Mercury
What is the name of Earth’s only natural satellite?
The Moon
True or False: The gravitational force decreases with increasing distance between two objects.
True
Fill in the blank: The _____ is the region of space where the Sun’s gravitational influence is dominant.
solar system
What is the primary reason astronauts experience weightlessness in space?
They are in free fall while orbiting Earth.
What is the term for artificial satellites that provide communication services?
Communication satellites
What is the primary force acting on a satellite in orbit?
Gravity