Which planet is closest to the Sun?
Mars
Mercury
Earth
What type of object is the Sun?
A planet
A star
A satellite
Astronomers have divided the planets into two groups of four. What are the features of the four inner planets?
They are small, rocky and dense
They are big balls of gas
They are small balls of gas
Which of these objects is a dwarf planet?
The Moon
Pluto
Which of the following is a natural satellite?
The International Space Station
The Hubble Space Telescope
What are comets made up of?
Ice, dust and rocky material
Metals and rocky material
Gas
Which of the following is not a part of the solar system?
The Milky Way
The Sun
What happens to the gravitational force of attraction between two objects if the distance between them increases?
The force of attraction increases
The force of attraction decreases
The force of attraction remains constant
What is the weight on the Earth’s surface of a mass of 24 kg if gravity is 10 N/kg?
2.4 N
24 N
240 N
Which statement about geostationary satellites is correct?
Geostationary satellites appear to remain in the same part of the sky when viewed from the ground because they are stationary.
Geostationary satellites appear to remain in the same part of the sky when viewed from the ground because they take 24 hours to orbit the Earth.
Geostationary satellites appear to remain in the same part of the sky when viewed from the ground because they orbit in the opposite direction to the Earth.