.
Physics
Balanced and Unbalanced Forces; Speed, Velocity and Acceleration; and Newtons 3 Laws of Motion.
Balanced and Unbalanced Forces
Which way is the box going to move? ____right___________ and _____up_________ What is the net force?_2N right and 7N up______
27 N 25 N
7N
Speed, Velocity and Acceleration
Write the correct vocabulary word on the line.
1. speed plus direction (N, S, E or W) _____velocity_________
2. rate of change in velocity Speeding up, slowing down, changing direction acceleration
3. the rate at which an object moves ___speed________
Write speed, velocity or acceleration in the box that matches the scenario.
speed
Two runners ran the same distance (10km) but one completed it in 3600 seconds and the other in 2800 seconds.
speed
Spirit of Australia, a hydroplane boat, made speed records by traveling 239 miles in 0.75 hours (45 minutes).
velocity
A runner is running east at 10 m/s.
velocity
Youre rowing a boat upstream at 15 km/hr, against a current moving at 8 km/hr.
acceleration
You are driving a car and making a left hand turn to the school.
Calculating Speed and Motion Graphs
Use the formula to calculate the speed of the objects. Be sure to include the correct unit.
a. A toy train went around a 6m track in 3 minutes. __2 m/m_____
b. A student ran the 200m track in 2 minutes. _____100 m/m______
c. An airplane flew for 500 km in 20 minutes. _____25 m/m______
Write Newtons 3 Laws of Motion
The Law of Inertia an object wants to continue to do what it is doing unless an unbalanced force acts on it. Rest stay at rest. In motion stay in motion at the same speed and direction unless an unbalanced force acts on it. An unbalanced force will change an objects speed and/or direction
The Law of Force and Acceleration f=ma the greater the force, the greater the acceleration, the greater the mass the greater the force needed for the same acceleration.
The Law of Action-Reaction for every action there is an equal and opposite reaction
Write which one of Newtons 3 Laws describes the picture/situation below.
This is Newtons 3rd Law This is Newtons 2nd Law This is Newtons 1st Law
Person in the car keeps moving because the force stopping the car does not act on the person.
Golf ball is at rest until the force of the club makes it accelerate.
Force comes out gun in front and walle moves backwards in the opposite direction
Why? Why? Why?
Chemistry
Atomic Structure, Reading the Periodic Table, Chemical Reactions and Formulas and Equations.
Subatomic Particle
Location
Charge
Mass
Proton
nucleus
Positive
1 amu
Neutron
Nucleus
Neutral
1 amu
Electron
Electron cloud
Negative
0 amu
Identify the Element based on the models categorize each as a metal, nonmetal, etc.
__Boron___ ___Lithium___ __Neon_ __Sodium__
_non metal/mettaloid_ __metal___ _non metal/noble gas_ _metal/ alkali metal_
Fill in the chart for these elements
Element
Atomic #
Protons
Neutrons
Electrons
Atomic Mass
Helium
2
2
2
2
4
Berylium
4
4
5
4
9
Fluorine
9
9
10
9
19
Sodium
11
11
12
11
23
Reactivity is based 100% on what? ____valence electrons______________________
Why are groups 1 and 17 more reactive than groups 2 and 16? The only need to get 1 or give 1 electron to complete its valence shell, while groups 2 16 need to give or take 2 electrons to complete their valence shell.
Why are the Noble Gases (Group 18) stable? The valence shell is complete and full.
The table below lists three characteristics of an atom of an element.
Characteristics of an Element
Number of Protons
Number of Neutrons
Number of Valence Electrons
37
48
1
An atom of which element is described by the data in the table?
A Radon
B Cadmium
C Rubidium
D Astatine
The diagram shows a homemade car being pushed with a force of 25 N.
Force = 25 N
Motion
of car
The force causes the car to move at a constant speed of 3 m/s. What will happen if the force is changed to 35 N?
F The car will move at a constant speed of 13 m/s.
G The speed of the car will not change.
H The speed of the car will increase.
J The speed of the car will decrease to 1 m/s.
Four students were asked to classify the activities of the people in the picture below as examples of either potential or kinetic energy.
Which student correctly classified the activities?
Student 1
Student 3
F H
Student 2
Student 4
The atoms of a certain element each contain 11 protons and 1 valence electron. Which statement correctly identifies this element and describes its chemical reactivity?
A The element is sodium, and it is highly reactive.
B The element is fluorine, and it is not very reactive. C The element is sodium, and it is not very reactive. D The element is fluorine, and it is highly reactive.
The diagram below shows two different forces acting on a cyclist riding a bicycle.
The total mass of the cyclist and the bicycle is 100.0 kg. Based on this information, what is the acceleration of the cyclist?
A 0.66 m/s2 backward, because the force of the air slows the cyclist down
B 0.66 m/s2 forward, because the applied force is greater than the force of the air
C 2.3 m/s2 backward, because the forces are opposite and not equal
D 2.3 m/s2 forward, because the cyclists inertia is greater than the force of the air
.
Physics
Balanced and Unbalanced Forces; Speed, Velocity and Acceleration; and Newtons 3 Laws of Motion.
Balanced and Unbalanced Forces
Which way is the box going to move? ____
right
___________ and _____
up
_________ What is
the net force?_
2N right and 7N
up
______
27 N
25 N
7
N
Speed, Velocity and Acceleration
Write the correct vocabulary word on the line.
1. speed plus direction (N, S, E or W)
_____
velocity
_________
2. rate of
change in velocit
y
Speeding up, slowing down, changing direction
acceleration
3. the rate at which an object moves
___
speed
________
Write speed, velocity or acceleration in the box that matches the scenario.
speed
Two runners ran the same
distance (10km) but one completed it in 3600 seconds and
the other in 2800 seconds.
speed
Spirit of Australia
, a hydroplane boat, made speed records by traveling 239 miles in
0.75 hours (45 minutes).
velocity
A runner is running east at 10 m/s.
velocit
y
Youre rowing a boat upstream at 15 km/hr, against a current moving at 8 km/hr.
acceleration
You are driving a car and making a left hand turn to the school.
.
Physics
Balanced and Unbalanced Forces; Speed, Velocity and Acceleration; and Newtons 3 Laws of Motion.
Balanced and Unbalanced Forces
Which way is the box going to move? ____right___________ and _____up_________ What is
the net force?_2N right and 7N up______
27 N 25 N
7N
Speed, Velocity and Acceleration
Write the correct vocabulary word on the line.
1. speed plus direction (N, S, E or W)
_____velocity_________
2. rate of change in velocity Speeding up, slowing down, changing direction
acceleration
3. the rate at which an object moves ___speed________
Write speed, velocity or acceleration in the box that matches the scenario.
speed
Two runners ran the same distance (10km) but one completed it in 3600 seconds and
the other in 2800 seconds.
speed
Spirit of Australia, a hydroplane boat, made speed records by traveling 239 miles in
0.75 hours (45 minutes).
velocity A runner is running east at 10 m/s.
velocity
Youre rowing a boat upstream at 15 km/hr, against a current moving at 8 km/hr.
acceleration
You are driving a car and making a left hand turn to the school.
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