# Science Midterm Exam

## Quiz by Sara Leigh-Manuell

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22 questions
• Q1
What poles on a magnet REPEL?
North and North
Positive and Negative
Negative and Negative
North and South
30s
• Q2
What two factors affect gravitational potential energy
The amount of CHARGE and POLES
The amount of MASS and object has and its HEIGHT off the ground
The chemical bonds and energy
The type of material and PULL
30s
• Q3
If you are traveling EAST in a car, what direction do the trees look like they are going?
WEST
EAST
SOUTH
NORTH
30s
• Q4
Describe the speed of this object.
This object is falling and speeding up
This object is turning left and slowing down
This object is traveling at a constant speed.
This object is slowing down to the right
30s
• Q5
This car is traveling to the right. What is happening to its speed?
It is traveling at a constant speed
It is speeding up.
It is slowing down.
It is falling
30s
• Q6
This car is driving to the RIGHT. Describe its speed.
The car is traveling at a constant speed.
The car is parked.
The car is slowing down because the friction arrow is the longest arrow.
The car is speeding up.
30s
• Q7
If the forces are BALANCED, what does that mean?
The object is moving at a constant speed.
The object is speeding up.
The object is slowing down.
The object is falling quickly.
30s
• Q8
If the forces are UNBALANCED, what does that mean?
The object is speeding up OR slowing down
The object is sitting still
The object disappears.
The object is moving at a constant speed.
30s
• Q9
What two magnetic poles ATTRACT each other?
North and South
Positive and Negative
North and North
South and South
30s
• Q10
How does distance affect the strength of a magnetic field?
As distance increases, the strength of the field decreases.
As distance increases, the strength increases
As distance decreases, the strength decreases.
30s
• Q11
What electric charges repel each other?
Positive and Positive OR Negative and Negative
East and West
Positive and Negative
North and South
30s
• Q12
How can you make this simple electromagnet stronger.
Remove the nail
Take away the wire
Make the battery smaller
30s
• Q13
What type of energy conversion happens in a generator?
It converts CHEMICAL to PHYSICAL energy.
It converts ELECTRICAL to WIND energy
It converts MECHANICAL energy to ELECTRICAL energy.
It converts ELECTRICAL to MECHANICAL energy
30s
• Q14
What happens in a motor?
It converts ELECTRICAL to MECHANICAL energy. (You plug it in and something spins)
It converts POTENTIAL to KINETIC energy.
It converts MECHANCIAL to ELECTRICAL. (It makes electricity).
30s
• Q15
Describe P waves.
They are the second and slowest waves. They travel through liquid only.
They are the first and slowest waves that only travel through solids.
They are the first and fastest waves. They can travel through solids and liquids.
They are the third and fastest waves that travel through gas.
30s

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