Transcript Standardized Test Practice

Chapter Resources
Click on one of the following icons to go to
that resource.
gpescience.com
Image Bank
Foldables
Video Clips and Animations
Chapter Summary
Chapter Review Questions
Standardized Test Practice
To return to the chapter
summary click escape or
close this document.
Chapter Resources
gpescience.com
To return to the chapter
summary click escape or
close this document.
Image Bank
To return to the chapter
summary click escape or
close this document.
Click on individual
thumbnail images to
view larger versions.
Image Bank
Transfer Images
To transfer images to your own power point follow
the following steps:
• Open the “Resource” file from the CD-ROM disc –
view the file in the “normal view” or “slide sorter
view” mode - go to slide #2 – from there you can
click through the images and follow these
instructions. Click once on the image.
• Copy the image.
• Go to your own power point document.
• Paste the image.
To return to the chapter
summary click escape or
close this document.
Image Bank
Athlete
Running
To return to the chapter
summary click escape or
close this document.
Image Bank
Conversion
Table
To return to the chapter
summary click escape or
close this document.
Image Bank
Distance vs.
Displacement
To return to the chapter
summary click escape or
close this document.
Image Bank
Units of
Speed
To return to the chapter
summary click escape or
close this document.
Image Bank
Speed
Changing
over Distance
To return to the chapter
summary click escape or
close this document.
Image Bank
Speedometer
To return to the chapter
summary click escape or
close this document.
Image Bank
Graphing
Motion
To return to the chapter
summary click escape or
close this document.
Image Bank
Motion of
Earth’s Crust
To return to the chapter
summary click escape or
close this document.
Image Bank
Earth’s
Layers
To return to the chapter
summary click escape or
close this document.
Image Bank
Mountain
Range
To return to the chapter
summary click escape or
close this document.
Image Bank
Positive
Acceleration
To return to the chapter
summary click escape or
close this document.
Image Bank
Negative
Acceleration
To return to the chapter
summary click escape or
close this document.
Image Bank
Changing
Direction
To return to the chapter
summary click escape or
close this document.
Image Bank
Positive
Acceleration
To return to the chapter
summary click escape or
close this document.
Image Bank
Positive
Acceleration
Graph
To return to the chapter
summary click escape or
close this document.
Image Bank
Negative
Acceleration
To return to the chapter
summary click escape or
close this document.
Image Bank
Negative
Acceleration 2
To return to the chapter
summary click escape or
close this document.
Image Bank
Amusement
Park
Acceleration
To return to the chapter
summary click escape or
close this document.
Image Bank
Negative
Acceleration
Graph
To return to the chapter
summary click escape or
close this document.
Image Bank
Changing
Motion
To return to the chapter
summary click escape or
close this document.
Image Bank
Balanced
Forces
To return to the chapter
summary click escape or
close this document.
Image Bank
Unequal
Forces
To return to the chapter
summary click escape or
close this document.
Image Bank
Combined
Forces
To return to the chapter
summary click escape or
close this document.
Image Bank
What
Happens in a
Car Crash
To return to the chapter
summary click escape or
close this document.
Image Bank
Velocity
and
Motion
To return to the chapter
summary click escape or
close this document.
Foldables
Motion
Make the following Foldable to help identify
what you already know, what you want to know,
and what you learned about science.
To return to the chapter
summary click escape or
close this document.
Foldables
Fold a sheet of paper
in half lengthwise.
Make the back edge
about 1.25 cm longer
than the front edge.
To return to the chapter
summary click escape or
close this document.
Foldables
Fold in half, then fold
in half again to make
three folds.
To return to the chapter
summary click escape or
close this document.
Foldables
Unfold and cut only
the top layer along
the three folds to
make four tabs.
To return to the chapter
summary click escape or
close this document.
Foldables
Label the tabs.
To return to the chapter
summary click escape or
close this document.
Foldables
Identify Questions
Before you read the chapter, select a motion
you can observe and write it under the left tab.
As you read the chapter, write answers to the
other questions under the appropriate tabs.
To return to the chapter
summary click escape or
close this document.
Video Clips and Animations
Click image to play movie.
To return to the chapter
summary click escape or
close this document.
To view the next video
clip or animation click
here.
Video Clips and Animations
To return to the chapter
summary click escape or
close this document.
Reviewing Main Ideas
1
Describing Motion
• Motion is a change of position of a body.
Distance is the measure of how far an object
moved. Displacement is the distance and
direction of an object’s change in position
from the starting point.
• A reference point must be specified in order
to determine an object’s position.
To return to the chapter
summary click escape or
close this document.
Reviewing Main Ideas
1
Describing Motion
• The speed of an object can be calculated
from this equation:
• The slope of a line on a distance-time graph
is equal to the speed.
• Velocity describes the speed and direction of
a moving object.
To return to the chapter
summary click escape or
close this document.
Reviewing Main Ideas
2
Acceleration
• Acceleration occurs when an object changes
speed or changes direction.
• An object speeds up if its acceleration is in
the direction of its motion.
• An object slows down if its acceleration is
opposite to the direction of its motion.
• Acceleration is the rate of change of velocity,
and is calculated from this equation:
To return to the chapter
summary click escape or
close this document.
Reviewing Main Ideas
3
Motion and Forces
• A force is a push or pull.
• The net force acting on an object is the
combination of all the forces acting on the
object.
• The forces on an object are balanced if the
net force is zero.
To return to the chapter
summary click escape or
close this document.
Reviewing Main Ideas
3
Motion and Forces
• Inertia is the resistance of an object to a
change in motion.
• According to Newton’s first law of motion,
the motion of an object does not change
unless an unbalanced net force acts on the
object.
To return to the chapter
summary click escape or
close this document.
Chapter Review
Question 1
Which includes both the speed of a moving
object and the direction of its motion?
A.
B.
C.
D.
displacement
distance
instantaneous speed
velocity
To return to the chapter
summary click escape or
close this document.
Chapter Review
Answer
The answer is D. Displacement includes
direction, but not speed.
To return to the chapter
summary click escape or
close this document.
Chapter Review
Question 2
What is the average speed in m/s of a runner
who travels 10.0 km in 1.5 hours?
A.
B.
C.
D.
6.67 m/s
1.85 m/s
0.93 m/s
0.85 m/s
To return to the chapter
summary click escape or
close this document.
Chapter Review
Answer
The answer is B. Remember to convert
kilometers to meters and hours to seconds.
To return to the chapter
summary click escape or
close this document.
Chapter Review
Question 3
A car travels at a constant speed of 40 m/s for 2
hours. What was the distance traveled in km?
To return to the chapter
summary click escape or
close this document.
Chapter Review
Answer
The car traveled 288 km. There are 3,600 s in
1 h and 1,000 m in 1 km.
Step 1: 40 m/s × 7,200 = 288,000
Step 2: 288,000= 288 km
1,000
To return to the chapter
summary click escape or
close this document.
Chapter Review
Question 4
Which statement is correct?
A. A force acting on an object always changes
the velocity of the object.
B. A net force of zero on an object does not
change the velocity of the object.
C. Net force must always equal zero.
D. Unbalanced forces cannot cause acceleration.
To return to the chapter
summary click escape or
close this document.
Chapter Review
Answer
The answer is B. A net force of zero occurs
when the forces acting on an object cancel
each other.
To return to the chapter
summary click escape or
close this document.
Chapter Review
Question 5
Which has the greatest inertia?
A.
B.
C.
D.
bowling ball
golf ball
table tennis ball
tennis ball
To return to the chapter
summary click escape or
close this document.
Chapter Review
Answer
The answer is A. The greater the mass of an
object is the greater its inertia.
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Question 1
A moving object traveled 4900 m in 165 s.
What is its average speed?
A.
B.
C.
D.
165 m/s
55 m/s
30 m/s
15 m/s
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Answer
The answer is C. Average speed is equal to
the total distance traveled divided by the total
time of travel.
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Question 2
This graph
represents swim
times for three
different swimmers.
Which swimmer did
not maintain a
constant speed?
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
A.
B.
C.
D.
A
B
C
All speeds
were constant.
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Answer
The answer is C. During the time interval
between 10 and 20 minutes, swimmer C had
a speed of 0 m/min.
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Question 3
Which best describes the
motion of car A?
A. constant speed
B. negative acceleration
C. positive acceleration
D. zero acceleration
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Answer
The answer is C. The
speed of the car is
increasing, so the
acceleration is positive.
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Question 4
Calculate the acceleration of a car that starts at
rest and has a final velocity of 30 m/s after 10 s.
A.
B.
C.
D.
– 3 m/s2
3 m/s2
– 20 m/s2
20 m/s2
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Answer
The answer is B. Use this equation to calculate
acceleration: a = (vf – vi)/t
To return to the chapter
summary click escape or
close this document.
Standardized Test Practice
Question 5
What is Bill’s average speed?
Runner
Carlos
Bill
Janet
Ann
To return to the chapter
summary click escape or
close this document.
Distance
(km)
14.5
8.0
12.4
10.3
Time
(min)
42
38
32
30
Standardized Test Practice
A. .10 km/min
B. .21 km/min
Runner
Carlos
Bill
Janet
Ann
To return to the chapter
summary click escape or
close this document.
C. .34 km/min
D. .38 km/min
Distance
(km)
14.5
8.0
12.4
10.3
Time
(min)
42
38
32
30
Standardized Test Practice
Answer
The correct answer is B. Use the equation:
To return to the chapter
summary click escape or
close this document.
Help
To advance to the next item or next page click on any
of the following keys: mouse, space bar, enter, down or
forward arrow.
Click on this icon to return to the table of contents.
Click on this icon to return to the previous slide.
Click on this icon to move to the next slide.
Click on this icon to open the resources file.
Click on this icon to go to the end of the presentation.
To return to the chapter
summary click escape or
close this document.
End of Chapter Resources File
To return to the chapter
summary click escape or
close this document.