Test
Astronomy Study Guide
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Preguntas del test (46)
1What season is shown for the Northern Hemisphere?
- AWinter
- BSpring
- CSummer
- DFall
2The [blank_start]axis[blank_end] is the imaginary line that passes through the Earth's center and the North and South poles.
- Aaxis
3The Earth's rotation causes [blank_start]day and night[blank_end].
- Aday and night
4It takes [blank_start]24[blank_end] hours for Earth to rotate one time.
- A24
5What direction does Earth rotate?
- AClockwise
- BCounterclockwise
6The movement of the Earth around the Sun is a [blank_start]revolution[blank_end].
- Arevolution
7It takes [blank_start]365.25[blank_end] days for the Earth to travel once around the Sun.
- A365.25
8The path that Earth follows is call a(n) [blank_start]orbit[blank_end].
- Aorbit
9The equator is always receiving [blank_start]direct[blank_end] sunlight.
- Adirect
10The north and south poles are always receiving [blank_start]indirect[blank_end] sunlight.
- Aindirect
11During an equinox, neither poles are facing the sun.
- AVerdadero
- BFalso
12Earth has seasons because...
- AIt rotates.
- BIt revolves around the Sun.
- CIts axis is straight up and down.
- DIt axis is tilted.
13What day is the Summer Solstice for the Northern Hemisphere?
- AMarch 21
- BJune 21
- CSeptember 21
- DDecember 21
14What day is the Vernal Equinox for the Northern Hemisphere?
- AMarch 21
- BJune 21
- CSeptember 21
- DDecember 21
15What day is the Autumnal Equinox for the Northern Hemisphere?
- AMarch 21
- BJune 21
- CSeptember 21
- DDecember 21
16What day is the Winter Solstice for the Northern Hemisphere?
- AMarch 21
- BJune 21
- CSeptember 21
- DDecember 21
17Which direction does the Earth revolve around the Sun?
- AClockwise
- BCounterclockwise
18The definition of gravity is the [blank_start]attractive force between objects[blank_end].
- Aattractive force between objects
19The law of universal gravitation states that...
- Aan object in motion stays in motion unless acted upon by an outside force.
- Ban objects mass on the Moon is 1/5 its mass on Earth.
- Cevery object in the universe is attracted to every other object.
20The strength of the force of gravity between two objects depends on what two factors?
- Amass
- Bspeed
- Cdistance
- Dseason
21If the mass of an object increases, the force between them [blank_start]increases[blank_end].
- Aincreases
22If the distance between two objects increases, the force between them [blank_start]decreases[blank_end].
- Adecreases
23weight=mass*[blank_start]acceleration of gravity[blank_end]
- Aacceleration of gravity
24The acceleration of gravity on Earth is [blank_start]9.81[blank_end] m/s^2.
- A9.81
25The unit for weight is [blank_start]Newtons[blank_end].
- ANewtons
26The unit for mass is [blank_start]grams[blank_end].
- Agrams
27The mass of an object was 112 kg. Its weight on the Earth is [blank_start]1097[blank_end] Newtons.
- A1097
28An object's mass on the Moon was 419 kg. Its mass on the Earth is [blank_start]419[blank_end] kg.
- A419
29[blank_start]Inertia[blank_end] is the tenancy of an object to resist a change in motion.
- AInertia
30[blank_start]Newton's first law of motion[blank_end] states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force.
- ANewton's first law of motion
31What two forces keep the Moon in orbit around the Earth?
- AMass
- BInertia
- CGravity
- DDistance
32A(n) [blank_start]umbra[blank_end] is the central darker part of a shadow.
- Aumbra
33A(n) [blank_start]penumbra[blank_end] is the part of a shadow surrounding the darkest part.
- Apenumbra
34Label this lunar eclipse.
- ATotal Lunar Eclipse
35Label this lunar eclipse.
- APartial Lunar Eclipse
36A solar eclipse occurs in the [blank_start]new moon[blank_end] phase.
- Anew moon
37A lunar eclipse occurs in the [blank_start]full moon[blank_end] phase.
- Afull moon
38A person in the Moon's umbra would see a [blank_start]total[blank_end] solar eclipse.
- Atotal
39A person in the Moon's penumbra would see a [blank_start]partial[blank_end] solar eclipse.
- Apartial
40What kind of tide is shown?
- ASpring Tide
41What kind of tide is shown?
- ANeap Tide
42The changing tides are caused by the [blank_start]gravitational attraction of the moon[blank_end].
- Agravitational attraction of the moon
43Around the world, high tides occur [blank_start]2[blank_end] times a day.
- A2
44Approximately [blank_start]7[blank_end] days after a Spring Tide, a Neap Tide occurs.
- A7
45During a Spring Tide, high tides are _____ and low tides are _____.
- Alower, higher
- Bhigher, lower
- Clower, lower
- Dhigher, higher
46During a Neap Tide, high tides are _____ and low tides are _____.
- Alower, lower
- Bhigher, higher
- Clower, higher
- Dhigher, lower
Información
- Descripción
- 7th grade Science Test sobre Astronomy Study Guide, creado por Sarayu Vijayanagaram el 17/02/2017.
- Autor
- Sarayu Vijayanagaram
- Idioma
- English
- Visitas
- 41
- Etiquetas
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