What pushes a satellite along its circular orbit around a planet?

Nothing - no force acts to push the satellite along.

Why doesn't a planet's gravitational attraction increase or decrease the speed of a satellite in a circular orbit?

The force is perpendicular to the velocity of the satellite.

What effect does a planet's gravity have on a satellite orbiting along a circular orbit?

It changes the direction of the satellite's velocity but not its speed.

Pluto is a dwarf planet. A dwarf planet ...

Is big enough to be spherical, but not big enough to clear its orbit.

Is the Earth's Moon a natural satellite? Choose the BEST answer.

Yes - it's natural and it orbits a planet.

studbud

IGS Ph AQA GCSE Sep : Solar System & Orbits Basics

11 termsStudBud Administration131 plays

Imported from external platform

Flashcards11 cardsFPractice quizPHost liveL

Questions 11

Answers

1
What pushes a satellite along its circular orbit around a planet?
The satellite's momentum.
The force the planet's gravity exerts on the satellite.
Star light hits the satellite and exerts a force on it, keeping it going.
Nothing - no force acts to push the satellite along.
2
Why doesn't a planet's gravitational attraction increase or decrease the speed of a satellite in a circular orbit?
The force is just keeping the satellite on the correct orbital path.
The force is perpendicular to the velocity of the satellite.
The satellite would speed up if the planet's gravity wasn't pulling it.
The force is parallel to the satellite's velocity.
3
The name of something that orbits a planet is a ...
dwarf planet
satellite
star
comet
4
What effect does a planet's gravity have on a satellite orbiting along a circular orbit?
It keeps the satellite in a circle.
It keeps the satellite going along its orbit.
It changes the direction of the satellite's velocity but not its speed.
It changes the satellites speed and direction.
5
How many planets in the solar system?
9
7
8
6
Pluto is a dwarf planet. A dwarf planet ...
Is big enough to be spherical, but not big enough to clear its orbit.
Is too small to count as a real planet.
Is spherical and is big enough to clear its orbit of other objects.
Is irregularly shaped, like an asteroid.
7
Is the Earth's Moon a natural satellite? Choose the BEST answer.
Yes - it's natural and it orbits a planet.
Yes - it's been there since the solar system formed.
No - its orbit is too far away from Earth for it to count as a satellite.
No - it's natural, so it's not a satellite.
8
Mars' orbit is about twice as far from the Sun as the Earth's is. Choose the most likely time for Mars to orbit the Sun.
2 Earth years.
1 Earth year.
2000 Earth years.
0.5 Earth year.
9
Which object is not part of our solar system?
comet
asteroid
black hole
star
10
Is the International Space Station (ISS) an artificial satellite?
True
False
11
Planets orbit a star. How long does it take the Earth to orbit the Sun once.
One month
One Earth year
One Earth month
One Year

IGS Ph AQA GCSE Sep : Solar System & Orbits Basics Flashcards | StudBud