 |
1 | |
The tool that uses lenses and mirrors to make distant objects appear larger is ____. |
| | A) | a telescope |
| | B) | a transformer |
| | C) | a microscope |
| | D) | a magnifying glass |
|
|
2 | |
When we speak of the gases that surround Earth, we are talking about the ____. |
| | A) | hemisphere |
| | B) | altitude |
| | C) | atmosphere |
| | D) | ionosphere |
|
|
3 | |
At what altitude to spacecraft orbit Earth? |
| | A) | 20–100 km |
| | B) | 100–150 km |
| | C) | 150–200 km |
| | D) | 250 km or more |
|
|
4 | |
Gravity is a ____ that pulls together any two objects that have mass. |
| | A) | technology |
| | B) | motion |
| | C) | force |
| | D) | vibration |
|
|
5 | |
On what two things does the strength of gravity depend? |
| | A) | the mass of the objects and their weight |
| | B) | the mass of the objects and their distance from each other |
| | C) | the mass of the objects and their size |
| | D) | the size of the objects and their distance from each other |
|
|
6 | |
What is an orbit? |
| | A) | the path of an object in space around a larger object |
| | B) | the circular motion of a planet |
| | C) | a type of spacecraft |
| | D) | the part of a comet that faces the Sun |
|
|
7 | |
What do we call a large body that orbits a star? |
| | A) | a moon |
| | B) | a planet |
| | C) | an asteroid |
| | D) | a comet |
|
|
8 | |
What is the title given to the planets and all the other objects that orbit the Sun? |
| | A) | solar flare |
| | B) | outer space |
| | C) | the asteroid belt |
| | D) | the solar system |
|
|
9 | |
Which of the following lists the nine planets of our solar system in order from closest to the Sun to farthest away? |
| | A) | Mercury, Venus, Mars, Earth, Saturn, Jupiter, Uranus, Pluto, Neptune |
| | B) | Jupiter, Uranus, Pluto, Mercury, Venus, Mars, Earth, Saturn, Neptune |
| | C) | Pluto, Neptune, Uranus, Saturn, Jupiter, Mars, Earth, Venus, Mercury |
| | D) | Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto |
|
|
10 | |
The Sun is a huge ball of _____. |
| | A) | vapour |
| | B) | light |
| | C) | hot gases |
| | D) | molten rock |
|