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WorksheetsLost at Sea
Total questions: 50
Worksheet time: 43mins
Name
Class
Date
1.
The north and south poles of two magnets ______________ each other.
a)
a. have no reaction to
b)
b. move away from
c)
c. repel
d)
d. attract
2.
If you placed the south pole of one bar magnet near the south pole of another bar magnet, the two magnets would __________ each other.
a)
attract
b)
cancel
c)
repel
d)
discharge
3.
The Earth is a giant magnet.
a)
true
b)
false
4.
Iron, Nickel and cobalt are all __________________ materials
a)
Shiny
b)
poles
c)
magnetic
d)
cold
5.
How is a permanent magnet DIFFERENT from a temporary magnet?
a)
A permanent magnet attracts materials made of iron.
b)
A permanent magnet has poles.
c)
A permanent magnet has a magnetic field.
d)
A permanent magnet keeps its magnetism for a long time.
6.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a failing grade
7.
The unit of force is
a)
m/s
b)
m/s^2
c)
newton
d)
kg
8.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
9.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
10.
Which one is balanced?
a)
top
b)
bottom
c)
both
11.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
12.
What force brings the pencil down?
a)
Applied
b)
Magnetic
c)
Normal
d)
Gravitational
13.
The amount of matter in an object is
a)
pressure
b)
weight
c)
mass
d)
force
14.
Which of the following never changes no matter where in the universe?
a)
weight
b)
force
c)
mass
d)
pounds
15.
What does this tool measure?
a)
weight
b)
meters
c)
mass
d)
force
16.
Which planet is the closest planet to the sun?
a)
Mercury
b)
Venus
c)
Mars
d)
Pluto
17.
Besides Pluto, which planet is the furthest planet from the sun?
a)
Mercury
b)
Earth
c)
Neptune
d)
Uranus
18.
What happens to our shadow when the sun is low in the sky?
a)
It gets shorter
b)
It gets longer
c)
It is not visible if it is sunny
19.
At position A, which hemisphere would have summer?
a)
Northern hemisphere
b)
Southern hemisphere
20.
What happens when the area in which you live tilts away from the sun?
a)
It is summer.
b)
It is spring.
c)
It is winter.
d)
It is fall.
21.
What happens as Earth rotates?
a)
The sun appears to rise
b)
The sun moves across the sky
c)
The sun appears to set
d)
All of the above
22.
How long does it take for the Earth to make one complete rotation?
a)
365 days/1 year
b)
1 week
c)
24 hours/1 day
23.
What part of the moon do we see from Earth?
a)
all of it
b)
the same side
c)
none of it
d)
only one quarter
24.
The moon seems to change shape from day to day in a cycle that lasts about a month as it goes through _.
a)
revolutions
b)
phases
c)
rotations
d)
eclipses
25.
Name the moon phase
a)
First Quarter
b)
Last Quarter
c)
New Moon
d)
Full Moon
26.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
27.
The unit for current is the
a)
Volt
b)
Ohm
c)
Electron
d)
Amp
28.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
29.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
30.
The force keeping a planet in orbit around the sun is...
a)
Friction
b)
Tension
c)
Gravity
d)
weight
31.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
32.
Atoms may have electrons which carry a...
a)
positive charge
b)
negative charge
c)
neutral or no charge
d)
opposite
33.
Static means...
a)
not moving
b)
moving slowly
c)
moving quicky
34.
One example of static electricity is...
a)
rain
b)
thunder
c)
lightning
35.
Two objects that have opposite charges will...
a)
attract
b)
repel
c)
not move
36.
The girl's hair and the comb are attracting one another. The hair and the comb have
a)
opposite charges
b)
like charges
37.
What is the equation used to calculate pressure?
a)
pressure= force/mass
b)
pressure =mass/volume
c)
pressure=area/force
d)
pressure=force/area
38.
What is the unit of measurement for pressure?
a)
pascal
b)
grams
c)
milliters
d)
meters
39.
When you increase your depth under water, the water pressure on your body
a)
increases
b)
decreases
c)
stays the same
40.
An object will float on water if it is
a)
less dense than water.
b)
more dense than water.
c)
the same density as water.
41.
What pressure does a 4000N horse exert on the ground if each foot is 10cm2?
a)
40 N/cm2
b)
100 N/cm2
c)
400 N/cm2
d)
10 N/cm2
42.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
43.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
44.
How is Earth's magnetic field similar to that of a magnet?
a)
It is hundreds of miles long
b)
It has north and south poles
c)
It is made in Earth's core
d)
It is shaped like a horseshoe
45.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
46.
A ___________ is a device that has a magnetized needle that can spin freely.
a)
magnet
b)
compass
c)
filing
d)
electron
47.
What is this called?
a)
equator lights
b)
northern lights
c)
aurora borealis
d)
greenies
48.
If the mass of an object on Earth is 18 grams, what would the mass of the same object be on the Moon?
a)
18 g
b)
4 g
c)
0 g
d)
32 g
49.
The scientific unit for mass is
a)
Kg
b)
N
c)
pounds
d)
ounces
50.
If your mass is 35 kg on Earth, what would you weigh on Mars (g = 3.7 m/s2)?
a)
120 N
b)
130 N
c)
120 kg
d)
130 kg
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