WorksheetsMid-Term Review
Total questions: 70
Worksheet time: 35mins
Name
Class
Date
1.
Constant Variable
a)
The variable that is changed
b)
The variable that stays the same
c)
The variable that is measurable
2.
Data
a)
Observations gathered and recorded in an investigation
b)
To draw conclusions
c)
Variables that change
3.
Dependent variable
a)
The measurable variable
b)
The variable that is changed
c)
The variable that never changes
4.
Independent variable
a)
The one variable that is changed
b)
The measurable variale
c)
The constant variable
5.
Infer
a)
Variable that change
b)
Observations in an investigation
c)
To draw conclusions
6.
Science
a)
The study of matter and energy
b)
An attempt to explain a pattern
c)
A way of learning about the natural world
7.
Scientific theory
a)
An attempt to explain a pattern observed repeatedly
b)
A rule that describes a pattern
c)
A way of learning about the natural world
8.
Scientific law
a)
A rule that describes a pattern in nature
b)
A way of learning about the natural world
c)
The practical use of science knowledge
9.
Technology
a)
The study of matter and energy
b)
The practical use of scientific knowledge
c)
A rule that describes a pattern in nature
10.
Physical Science
a)
The study of matter and energy
b)
An attempt to explain a pattern
c)
A way of learning about the natural world
11.
Graph
a)
The SI unit for mass
b)
Used to collect and organize data
c)
A method of making measurements
12.
Kelvin
a)
The SI unit for temp.
b)
The SI unit for mass
c)
The SI unit for distance
13.
Estimation
a)
A method of making a rough measurement
b)
A description of how close a measurement is to one another
c)
Used to collect data
14.
Precision
a)
A method of taking measurements
b)
A collection of data
c)
Description of how close measurements are to one another
15.
Kilogram
a)
SI unit for mass
b)
SI unit for volume
c)
SI unit for distance
16.
Mass
a)
SI unit for length
b)
How much matter is in an object
c)
Amount of space an object occupies
17.
Meter
a)
SI unit for length
b)
A measurement of force
c)
SI unit for mass
18.
Rate
a)
The change of one measurement over a given time
b)
SI unit for length
c)
A measurement of force
19.
Volume
a)
Amount of matter in an object
b)
Amount of space an object occupies
c)
SI unit for length
20.
Weight
a)
A measurement of force
b)
Amount of space an object occupies
c)
SI unit for mass
21.
Atom
a)
The mass of the atoms isotopes
b)
Number of protons
c)
Small particle that makes up matter
22.
Atomic number
a)
Number of neutrons
b)
Number of protons
c)
Number of electrons
23.
Atomic mass
a)
The weighted average mass
b)
The number of proton and neutrons
c)
The number of protons
24.
Mass number
a)
Protons and neutrons
b)
The weight of the element
c)
Protons
25.
Element
a)
Smallest particle of matter
b)
Made of the same types of atoms
c)
Number of protons
26.
Proton
a)
Postive
b)
Negavtive
c)
Neutral
27.
Neutron
a)
Positive
b)
Neutral
c)
Negative
28.
Electron
a)
Positive
b)
Negative
c)
Neutral
29.
Nucleus
a)
Protons and electrons
b)
Electrons and neutrons
c)
Protons and neutrons
30.
Matter
a)
Anything that has protons
b)
Anything that has mass
c)
Anything that has neutrons
31.
Acceleration
a)
The speed of an object
b)
The change in velocity over time
c)
The change in distnace over time
32.
Speed
a)
The distance traveled per unit of time
b)
The distance traveled
c)
The time it takes to travel
33.
Instantaneous speed
a)
The speed in one instant of time
b)
The average speed over time
c)
The change in speed
34.
Law of conservation of momentum
a)
The total momentum of an object
b)
The change in speed
c)
The momentum before equals the momentum after
35.
Inertia
a)
The resistance of change
b)
The momentum of an object
c)
The speed of an object
36.
Distance
a)
How far from one point to another
b)
How fast an object moves
c)
How long it takes an object to move
37.
Momentum
a)
The resistance to motion
b)
How hard it is to stop an object
c)
The speed of an object
38.
Velocity
a)
Speed plus distance
b)
Speed plus direction
c)
Speed plus time
39.
Motion
a)
Changing position relative to a ref. point
b)
The speed of an object
c)
The distance an object moves
40.
Displacement
a)
Distance and direction
b)
Distnace and speed
c)
Distance and time
41.
Balanaced forces
a)
Opposes motion
b)
Push or a pull
c)
Object will not accelerate
42.
Force
a)
Net force
b)
Push or a pull
c)
Opposes motion
43.
Friction
a)
Opposes motion
b)
Push or a pull
c)
Net force is 0
44.
Net force
a)
Total forces acting on an object
b)
Always 0
c)
Opposes motion
45.
Newton's 1st law
a)
Object at rest stays at rest
b)
F=MA
c)
Equal and opposite reactions
46.
Newton's second law
a)
Object at rest stays at rest...
b)
Acceleration equals force divided by mass
c)
equal and opposite forces
47.
Newton's 3rd law
a)
Objects at rest stay at rest
b)
F=MA
c)
Equal and opposite forces
48.
Unbalanced forces
a)
Forces don't cancel out
b)
Forces do cancel out
c)
Net force
49.
Gravity
a)
The force that exists between two objects
b)
Equal and opposite reactions
c)
Only force acting on an object is gravity
50.
Free fall
a)
All forces acting on an object
b)
The only force acting on an object is gravity
c)
Every action has an opposite reaction
51.
Archimedes principle
a)
Mass divided by volume
b)
The bouyant force is equal to the weight of the fluid displaced
c)
Any substance has no definite shape and can flow
52.
Bernoullis Principle
a)
Upward force exerted by a fluid
b)
No definite shape
c)
When speed increases, pressure decreases
53.
Bouyant force
a)
Any substance that can float
b)
Speed of a fluid = less pressure
c)
The upward force exerted by a fluid
54.
Density
a)
Forces on an object
b)
Mass divided by volume
c)
How much space it occupies
55.
Fluid
a)
Definite shape and can flow
b)
No definite shape and cannot flow
c)
No definite shape and can flow
56.
Hydraulic system
a)
Uses fluid to increase an input force
b)
Bouyant force is equal to weight
c)
Force per unit area
57.
Pascal's principle
a)
The buoyant force is equal to weight
b)
Force per unit area
c)
When force is applied in a closed container, fluid increases everywhere
58.
Pressure
a)
Force per unit area
b)
The buoyant force
c)
Uses fluid to increase force
59.
Sinking
a)
The weight is greater than buoyant force
b)
The weight is less than buoyant force
c)
The forces applied to a fluid are 1
60.
Floating
a)
Buoyant force is 1
b)
Buoyant force is equal to objects weight
c)
Buoyant force is 0
61.
Simple machine
a)
Machine with 2 movements
b)
Machine with 1 movement
c)
Machine with wheels
62.
Screw
a)
Has a fulcrum
b)
Incline plane that moves
c)
Incline plane wrapped around a cylinder
63.
Lever
a)
Has a fulcrum
b)
Incline plane that moves
c)
Two rigidly attached wheels
64.
Wheel and axle
a)
Two rigidly attached wheels
b)
Machine with 1 movement
c)
Incline plane that moves
65.
Wedge
a)
Incline plane that moves
b)
Two rigidly attached wheels
c)
Has a fulcrum
66.
Incline plane
a)
An incline plane that moves
b)
A flat, sloped surface
c)
A grooved wheel with rope
67.
Pulley
a)
A grooved wheel with a rope
b)
A flat sloped surface
c)
Two rigidly attached wheels
68.
Work
a)
Work divided by time
b)
Percentage of work in and out
c)
When force causes an object to move
69.
Efficiency
a)
Percentage of work in and out
b)
Work divided by time
c)
Force causing an object to move
70.
Power
a)
Work in and out
b)
Work divided by time
c)
Force causing an object to move
100 %
