Transcript 5 pt

Speed Time
Graph
Science
or
Math
Measure It
Machine
or
Law
Vocabulary
5 pt
5 pt
5 pt
5 pt
5 pt
10 pt
10 pt
10 pt
10 pt
10 pt
15 pt
15 pt
15 pt
15 pt
15 pt
20 pt
20 pt
20 pt
20 pt
20 pt
25 pt
25 pt
25 pt
25 pt
25 1pt
What is the greatest speed
the worm reaches?
2
25 cm/min
3
What is the worm’s
acceleration during the first
2 minutes?
4
10 cm/min2
5
How fast is the worm traveling
as it goes from A to B?
6
10 cm/min
7
How would you describe the
worm’s motion during the
last 2 minutes?
8
Negative acceleration
9
How far does the worm travel
during the last 2 minutes?
10
25 cm
11
When an object is at rest,
what is its speed?
12
0
13
What units measure
acceleration?
14
m/s2
15
A basketball takes 15s to
roll 30m. What is the
average speed of the
basketball?
16
s = d/t
= 30m / 15s
= 2m/s
17
How do you calculate
acceleration?
18
Divide the change in speed
by the time.
19
A force of 50N is exerted
over a distance of 5m does
how much work?
20
W = Fd
= 50N x 5m
= 250J
21
What is the unit of force?
22
Newton
23
What is the unit of average
speed?
24
m/s
25
What is the unit of work?
26
Joules
27
What is the unit of
distance?
28
meters
29
What is the unit of time?
30
seconds
31
The harder you pedal a
bicycle, the faster it will go.
32
Newton’s Second Law
33
The main reason a person
can jump off the ground.
34
Newton’s Third Law
35
Your front teeth.
36
wedge
37
The cord on a window blind.
38
pulley
39
A hockey puck will slide
across ice for a long time
when it is hit.
40
Newton’s First Law
41
force
42
a push or pull
43
net force
44
the combination of all
forces acting on an object
45
mechanical advantage
46
number of times a machine
multiplies the effort force
you apply to it
47
work
48
done when an applied force
causes an object to move in
the direction of the force
49
velocity
50
changes when speed
changes, direction of
motion changes, or both
factors change
51