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NS PHYSICS - UNIT 1 TEST
By TRACI SIEVERS
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34 questions
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Question 1
1.
What property distinguishes a conductor from an insulator?
Density
Color
Resistance to heat
Ability to pass electric current easily
Question 2
2.
What occurs to electrons in conductors when heated?
They gain energy and move faster.
They convert to insulators.
They slow down.
They gain extra electrons.
Question 3
3.
What types of materials are typically good electrical conductors?
Rubber
Glass
Plastic
Metals
Question 4
4.
Which of the following materials would best conduct electricity?
Copper
Rubber
Glass
Wood
Question 5
5.
What is an extensive property in physics?
A property relating to internal energy only
A property exclusive to electromagnetic waves
A property that changes with the amount of material
A property that remains constant regardless of material amount
Question 6
6.
Which of the following properties is extensive?
Mass
Density
Pressure
Temperature
Question 7
7.
What leads to an increase of an extensive property?
Increasing density of the material
Applying more pressure
Increasing the temperature
Adding more of the same material
Question 8
8.
Which of the following is considered an extensive property in physics?
Density
Color
Volume
Temperature
Question 9
9.
What makes an intensive property different from an extensive property?
It doesn't depend on the amount of material
It always increases with temperature
It depends on the state of the material
It can be measured directly
Question 10
10.
Which of the following is an intensive property of matter?
Volume
Density
Length
Mass
Question 11
11.
Which of the following is considered an intensive property?
Mass
Length
Volume
Temperature
Question 12
12.
Which of the following is an example of an intensive property?
Volume
Mass
Length
Boiling point
Question 13
13.
What will most likely happen when malleable material is hammered?
It will evaporate
It will become more dense
It will shatter
It will flatten
Question 14
14.
Which property allows metals to be pulled into wires without breaking?
Ductility
Malleability
Elasticity
Brittleness
Question 15
15.
Which of the following substances is both malleable and ductile?
Ceramic
Gold
Glass
Wood
Question 16
16.
Which type of materials are more malleable?
Ceramics
Metals
Plastics
Gases
Question 17
17.
In the context of energy transformations, how does an exothermic process behave?
Absorbs energy as heat
Releases energy in the form of heat
Energy behavior is observer-dependent
Neither absorbs nor releases heat
Question 18
18.
What process results in an exothermic reaction?
Photosynthesis
Charging a battery
Evaporation of water
Combustion of fuel
Question 19
19.
What happens in an exothermic reaction?
Energy is released in form of heat
Creates perpetual motion
Energy is absorbed
Temperature decreases
Question 20
20.
What happens to energy in exothermic reactions?
Energy is released to surroundings
Energy forms spontaneously
Energy is drawn from surroundings
Energy remains constant
Question 21
21.
What occurs to energy during an endothermic reaction?
It's absorbed from the surroundings
It's both absorbed and released
It remains unchanged
It's released into surroundings
Question 22
22.
What happens to activation energy in endothermic reactions?
Does not require activation energy
Same as the energy of products
Less than energy of final products
Greater than energy of final products
Question 23
23.
What represents an endothermic phase change?
Deposition
Evaporation
Condensation
Freezing
Question 24
24.
Under constant pressure, if a reaction absorbs heat, it is...
both exothermic and endothermic
exothermic
endothermic
neutral
Question 25
25.
What happens to an object's acceleration when the force applied to it increases, but its mass stays the same?
Its acceleration remains the same.
Its acceleration increases.
Its acceleration decreases.
Its mass increases.
Question 26
26.
If a 50 kg object is accelerated at 5 m/s^2, what is the force acting on the object?
250 N
55 N
10 N
100 N
Question 27
27.
Newton's 2nd law of motion states that acceleration is directly proportional to net force. What does this mean?
When force decreases, acceleration increases.
When mass increases, force decreases.
When force increases, acceleration decreases.
When force increases, acceleration also increases.
Question 28
28.
If the force acting on an object is doubled, what will happen to the acceleration (assuming mass remains constant)?
The acceleration will remain the same.
The acceleration will double.
The acceleration will quadruple.
The acceleration will decrease by half.
Question 29
29.
An object starts at rest and accelerates at 5m/s² for 10 seconds. What is its final speed?
100 m/s
50 m/s
5 m/s
10 m/s
Question 30
30.
What represents the unit of acceleration in physics?
m²/s
m/s
m/s²
s/m²
Question 31
31.
What is the unit of force in the International System?
Pascal
Joule
Watt
Newton
Question 32
32.
In the formula F=ma, what does 'F' stand for?
Friction
Frequency
Float
Force
Question 33
33.
A force is a vector quantity. What does this mean?
It has both direction and magnitude
It can only be in one direction
It has no magnitude
It is independent of direction
Question 34
34.
What occurs when an object is not moving?
The forces on it are balanced
Only gravity acts upon it
It starts to speed up
It is unaffected by forces