Science 10 – Physics Unit Review
Physics was the third unit we covered in grade 10 science. There are 5 major things that were
covered that you will see on the exam:
 Distance, speed and time chart AND word problems
 Acceleration, speed and time chart AND word problems
 Graphing distance and time
 Significant digits
 Conversions
DISTANCE, SPEED AND TIME CHART
#
d
v
1
198km
78km/h
2
100m
3
500m
5
697km
6
7
9.72s
0.33m/s
4
47s
2.4m/s
1.35h
55km/h
12.5km
t
0.06h
7.8km/h
ACCELERATION, SPEED AND TIME CHART
#
a
v
1
2.71 m/s2
12.3 m/s
2
0.9 m/s2
3
9.12 m/s2
5
46.57 m/s2
6
7
18 s
5.55 m/s
4
25.6 s
6.34 m/s
10.1 s
758 m/s
0.008 m/s2
t
2.45 m/s
32.0 s
WORD PROBLEMS
1. How far will I go if I drive my SUV at an average
speed of 110 km/h for 1.32 hours?
2. Mr. Wilson drives his car at an average speed of
55.63km/h. How long will it take him to drive 86km?
3. What is the change in velocity if a truck accelerates
at 9.11 m/s2 for 17.2 seconds?
4. Justin starts at the top of Poley Mountain and
reaches a velocity of 10.72m/s in 67.5 seconds. What
is the acceleration?
5. Bryan races his dirt bike around a 5 km track. What
is his average speed if he completes the race in 0.14 h?
6. How long will it take for Mrs. Melanson to accelerate
from 0 m/s to 42 m/s if her acceleration is 17.9 m/s2?
GRAPHING
Create a graph for each of the following scenarios. Be sure to label both the x and y axis, give
the graph a title, plot your point, and draw a line of best fit. CAREFUL WITH YOUR
INTERVALS!!
Lexie’s 20 m dash!
Time (s)
0
5
10
15
20
Distance
(m)
0
2.5
5.2
7.6
11.0
Mike’s Audubon Race
Time (km)
0
25
50
75
100
Distance (h)
0
0.15
0.29
0.45
1.1
SIGNIFICANT DIGITS
How many significant digits are in the following numbers?
a. 14.067 _______
f. 0.005 _______
b. 1200 ________
g. 1.5892 ______
c. 0.0040067 _______
h. 604 ______
d. 0.15 ________
i. 36.00 _____
e. 12.043 ______
j. 6540789 _____
Calculate the following using the correct number of significant digits in your answer.
1. 12.4 x 3.7
____________
2. 1270.0 – 5.63
____________
3. 3.45 + 8.1123 – 2.92
____________
4. 2.01 x 6.782 + 3.90
____________
5. 0.002 x 3.68
____________
6. 8.77 + 2.3 – 5.61
____________
7. 76.1 / 3.9
____________
8. 0.007 X 100
____________