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Unit 23 Our Place in the Universe

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

sundial

a)

instrument indicating the time of day by the means of the position of the shadow of a gnomon cast onto a surface by the sun

b)

instrument indicating the time of day by the means of the position of the shadow of a gnome cast onto a surface by the sun

c)

instrument indicating the time of bay by the means of the position of the shadow of a gnomon cast onto a surface by the sun

d)

instrument indicating the time of day by the means of the position of the shadow of a gnomon cast onto a surface by the moon

2.

planet

a)

a large rock that orbits a star

b)

a tiny object that orbits a star

c)

a large object that orbits a star

d)

a large object that orbits a moon

3.

gnomon

a)

the piece on a watch that projects a shadow

b)

the piece on a sundial that projects a shadow

c)

the piece on a sundial that projects an image

d)

another word for a sundial

4.

axis

a)

an solid line on which something rotates

b)

an imaginary line on which something rotates

c)

an imaginary something on which something rotates

d)

none of the above

5.

gravity

a)

the force that attracts an object toward the edge of Earth or toward another object that has mass

b)

the force that attracts an object away from another object that has mass

c)

the force that attracts objects together

d)

the force that attracts an object toward the center of Earth or toward another object that has mass

6.

scale model

a)

representation of an object or group of objects that is larger or smaller than the actual size of the object

b)

representation of an object or group of objects

c)

representation of an object or group of objects, that has different proportions

d)

representation of an object or group of objects that is larger or smaller than the actual size of the object being represented, but the proportions of object sizes and distances remain intact

7.

gibbous

a)

moon phase in which the illuminated portion is greater than a semicircle and less than a full circle

b)

sun phase in which the illuminated portion is greater than a semicircle and less than a full circle

c)

plant phase in which the illuminated portion is greater than a semicircle and less than a full circle

d)

moon phase in which the illuminated portion is green

8.

quarter moon

a)

moon phase in which one quarter of the moon is illuminated by the sun

b)

moon phase in which one-half of the moon is illuminated by the sun

c)

moon phase in which all of the moon is illuminated by the sun

d)

moon phase in which none of the moon is illuminated by the sun

9.

relative distance

a)

the speed of an object relative to the speed of another object

b)

distance of something in relation to the sun

c)

distance of the sun in relation to something else

d)

distance of something in relation to something else

10.

tilt

a)

a sloping position

b)

to cause to lean or slant

c)

an upward or downward pivoting movement of a camera

d)

engage in a contest with

11.

analemma

a)

a graph of the position of the sun in the sky at certain points throughout the night

b)

a graph of the position of the moon in the sky at certain points throughout the day

c)

a graph of the position of the sun in the sky at certain points throughout the day

d)

a graph of the position of the sun in the sky at certan point throuhout the day

12.

south pole

a)

(of Earth) the western end of the imaginary line that Earth rotates around

b)

(of Earth) the northern end of the imaginary line that Earth rotates around

c)

(of Earth) the southern end of the imaginary line that Earth rotates around

d)

(of Earth) the eastern end of the imaginary line that Earth rotates around

13.

revolve

a)

move in a circular orbit around; orbit

b)

move in a circle on a central axis

c)

treat as the most important point or element

d)

consider (something) repeatedly and from different angles

14.

apparent brightness

a)

measure of brightness as seen by an observer on Earth

b)

measure of brightness as seen by an observer on the Sun

c)

measure of brightness as seen by an observer on the Moon

d)

measure of brightness as seen by an observer on Pluto

15.

force

a)

a push or pull

b)

coercion or compulsion

c)

make a way through or into by physical strength

d)

mental or moral strength or power

16.

star

a)

(of a movie, play, or other show) have (someone) as a principal performer

b)

a fixed, luminous point in the sky that is a large incandescent body

c)

decorate or cover with star-shaped marks or objects

d)

mark (something) for special notice or recommendation with an asterisk or other star-shaped symbol

17.

shadow

a)

dark area produced by any blocker coming between light and a surface

b)

used in reference to proximity, ominous oppressiveness, or sadness and gloom

c)

light area produced by any blocker coming between light and a surface

d)

dark area produced by an blocker coming between light and a surface

18.

luminosity

a)

intrinsic brightness of an object

b)

intrinsic luminescense of an object

c)

extrinsic brightness of an object

d)

altruistic brightness of an object

19.

new moon

a)

phase of the moon in which the moon does not appear to be illuminated by the sun

b)

the moon's birthday

c)

the new moon that is planned to replace the current one

d)

phase of the moon in which the moon does appear to be illuminated by the sun

20.

satellite

a)

an object that orbits a planet

b)

an object that orbits a star

c)

an object the orbits another satellite

d)

an object that is man-made and orbits Earth