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Review for Physics Test #1

Total questions: 35

Worksheet time: 28mins

Name
Class
Date
1.
Which is an example of conduction?
a)
Steam is rising from a cup of hot coffee.
b)
A hot biscuit is warming the plate it is on.
c)
The sun is shining through a window and warming a table.
d)
Grilling a hot dog over a campfire.
2.
You are stirring your hot chocolate with a metal spoon, and notices that the spoon is getting hot. This is most likely caused by which type of heat?
a)
conduction
b)
convection
c)
radiation
d)
insulation
3.
Which is the best choice for the handle of a frying pan?
a)
Metal, because it conducts heat.
b)
Wood, because it conducts heat.
c)
Metal, because it does not conduct heat.
d)
Wood, because it does not conduct heat.
4.
Which is an example of radiation?
a)
boiling a pot of noodles for dinner
b)
getting hot from lying in the sun
c)
feeling warm while taking a hot shower
d)
burning yourself after touching a hot plate
5.

Which substance will conduct the least amount of heat? (Hint: Think about the end of a frying pan)

a)

glass

b)

plastic

c)

aluminum

d)

copper

6.
Which best describes heat transfer by radiation?
a)
a slice of bacon frying in a pan
b)
a pot on a stove boiling water
c)
a camp fire warming hands
d)
a hot air balloon
7.
Why does an ice cube melt when dropped into hot liquid?
a)
The liquid absorbs heat from the ice.
b)
Heat from the liquid transfers to the ice.
c)
Heat from the ice transfers to the liquid.
d)
Cold from the ice transfers into the liquid.
8.
You put a heat pack on your cold feet. What will most likely be the result?
a)
The cold from your feet will be radiated into the heat pack.
b)
The warmth of the heat pack will be radiated onto your feet.
c)
The cold from your feet will be conducted into the heat pack.
d)
The warmth of the heat pack will be conducted onto your feet.
9.
You are wearing gloves while you get a hot pan out of the oven. Which best explains why you need to wear gloves while carrying the hot pan?
a)
The gloves protect your hands from convection heat in the hot pan.
b)
The gloves protect your hands from heat that is radiated through the hot pan.
c)
The gloves protect your hands from heat that is conducted through the hot pan.
d)
The gloves protect your hands from heat that enters the pan from the surrounding air.
10.
Which is an example of convection?
a)
the heat coming from a campfire
b)
a spoon in a bowl of soup becoming warmer
c)
warmer water at the surface of a swimming pool
d)
a hamburger being warmed by a campfire
11.
What is the “fuel” that “feeds” a hurricane
a)
cold air
b)
dry air
c)
warm and moist air
d)
warm and dry air
12.
The Gulf Stream is a ______ current that carries water from the ______ to the North Atlantic Ocean.
a)
cold, Tropics
b)
warm, Tropics
c)
cold, Mexico
d)
warm, South America
13.
Warm ocean currents generally come from
a)
The North Pole
b)
The South Pole
c)
The Equator
d)
Both A and B
14.
In general, surface currents that flow from the tropics toward the poles carry ______________ water.
a)
warm
b)
cold
c)
fresh
d)
oxbow lake
15.
Analyze the image. The red arrows represent warm water rising and the blue arrows represent cold water sinking. What type of heat transfer is responsible for this movement?
a)
conduction
b)
convection
c)
radiation
16.
Analyze the image. What could explain why certain parts of the ocean have warmer temperatures?
a)
the uneven heating of the Earth's surface
b)
the rising of cold air and the sinking of warm air
c)
hurricanes
17.
What makes a hurricane lose energy?
a)
Land
b)
Increased low pressure
c)
Meteorologists 
d)
Superman flying the other direction
18.
 Where do tropical storms start? 
a)
northpole
b)
on the coast
c)
in the ocean, near the equator
d)
in the ocean, near land
19.
What happens to a hurricane as it crosses over land?
a)
it gets stronger
b)
winds pick up a lot
c)
it begins to break up
d)
it just stops
20.
Where do hurricanes form?
a)
In the warm waters of the Atlantic Ocean near the equator
b)
In the cool waters of the North Sea
c)
In the Pacific Ocean near Japan
d)
In
21.

What is force?

a)

A push or pull; something that changes the motion of an object

b)

A force that resists motion between two surfaces in contact.

c)

A measure of how much matter an object is made of

d)

a change in [position over time

22.

What is net force?

a)

a compound that is based on carbon.

b)

the force that objects exert on each other because of their mass

c)

anything that has mass or volume

d)

the overall force acting on an object when all of the forces acting on it are combined

23.

What is inertia?

a)

an atom or group of atoms

b)

the resistance of an object to change in the speed or the direction of its motion

c)

a measure of how much matter is a

d)

a change in position over time

24.

What is Newton's First Law?

a)

the acceleration of an object increases with increased force and decreases with increased mass

b)

objects at rest remain a rest and objects in motion remain in motion with the same velocity, unless acted upon by an unbalanced force

c)

every time one object exerts force on another object, the second object exerts a force that is equal in size and opposite direction back on the first object.

d)

a table of elements, arranged by atomic number, that show patters in their properties

25.

Unbalanced force...

a)

have no force at all

b)

has a net force of zero

c)

can change the motion of an object

d)

has balance

26.
Which of the blocks above has balanced forces acting on it?
a)
A
b)
B
c)
C
d)
D
27.
Are the forces balanced or unbalanced? 
a)
Balanced
b)
Unbalanced
28.
All of the blocks above have the same mass.  Each block has 2 forces acting on it (a large force and a small force).  Which of the blockS would move the fastest across the floor?
a)
A
b)
B
c)
C
d)
D
29.
Who wins this game of "Tug of War?"
a)
Bryan & Alyssa
b)
Daniel & Maria
c)
They all win.
d)
None of them win.
30.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
31.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
32.
friction is a force that acts 
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
33.
Which has more Inertia? (so need more force to move) 
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
34.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
35.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force

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