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Midterm Exam_Intervention to Physics

Total questions: 35

Worksheet time: 1hrs 22mins

Name
Class
Date
1.
490,000 g =____ kg
a)
490
b)
49
c)
4,900
d)
0.49
2.
Is 55,000 mg greater than, less than, or equal to 5 kg?
a)
greater than
b)
equal to
c)
less than
3.

Using the conversion chart, as the units move to the left, the decimal place moves to the ____________.

a)

Right

b)

Sometimes to the right, sometimes to the left

c)

Left

d)

The decimal place doesn't change between units

4.

What is the basic unit of mass in the metric system?

a)

Liter

b)

Meter

c)

Gram

d)

Kilometer

5.

Select the largest unit.

a)

kilogram

b)

centigram

c)

decigram

d)

decagram

6.
Change from standard form to scientific notation: 12,000,000
a)
12.0  x  107
b)
0.12  x  107
c)
1.2  x  106
d)
1.2  x  107
7.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
8.
Change from standard form to scientific notation: 0.004078
a)
4.078  x  10-3
b)
4.078  x  103
c)
40.78  x  10-4
d)
.4078  x  10-2
9.
Which number is correctly written in scientific notation?
a)
8.2 x 102
b)
82 x 107
c)
3.45 x 94
10.
Divide:
(6.9 x 107) / (2.3 x 10-3)
a)
3 x 1010
b)
3 x 104
c)
3 x 10-4
d)
3 x 10-11
11.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
12.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
13.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
14.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
15.
How many sig figs are there?
0.000008
a)
1
b)
2
c)
6
d)
7
16.

Vector is a quantity with:

a)

magnitude and direction

b)

magnitude

c)

direction

d)

none of the above

17.

Vectors are equivalent if they have the same magnitude and direction. Which are equivalent vectors?

a)

u and -u

b)

u and a

c)

u and v

d)

u and b

18.

In the diagram ABCDEF is a regular hexagon with centre O.  OA→=a and AB→ =b\overrightarrow{OA}=a\ and\ \overrightarrow{AB}\ =b

Find expressions, in terms of  a and b, for:

CA→\overrightarrow{CA}  

a)

a - b

b)

b - a

c)

-a - b

d)

2a

19.

Find the vector of AB with initial point A(0, 8) and terminal point B(-9, -3)

a)

-9i + 5j

b)

-9i - 11j

c)

-9i+11j

d)

-9i-5j

20.

If y = 2i and z = -i - 4j, find 3y - 2z.

a)

5i - 8j

b)

4i + 8j

c)

8i + 8j

d)

-8i - 8j

21.

the linear or angular distance in a given direction between a body or point and a reference position.

a)

Displacement

b)

Position

c)

Relative

d)

Velocity

22.

any motion of a body where its weight is the only force acting upon it

a)

Free Fall

b)

Constant Acceleration

c)

Constant Speed

d)

Scalar

23.

A car travels 200 kilometers in 5 hours. What is the speed of the car?

a)

40 km/hr

b)

1000 km/hr

c)

50 km/hr

d)

4 km/hr

24.

A jet is traveling 200 km/hr for 10 hours. What is the total distance that the jet will travel?

a)

2000 km

b)

20 km

c)

2 km

d)

20000 km

25.

What quadrant is the heart in?

a)

Quadrant I

b)

Quadrant 2

c)

Quadrant 3

d)

Quadrant 4

26.

What is the resultant force?

a)

10 N

b)

0 N

c)

25 N

d)

1 N

27.

The change in velocity in a given time period is?

a)

initial velocity

b)

final velocity

c)

acceleration

d)

displacement

28.

If you throw a baseball straight up, what is its vertical velocity at the highest point?

a)

9.8 m/s2

b)

9.8 m/s

c)

0 m/s2

d)

0 m/s

29.

A freely falling object starts from rest. After falling for 6 seconds, it will have a speed of about:

a)

6m/s

b)

36m/s

c)

60m/s

d)

12m/s

30.

A motorboat, which has a speed of 5 m/s in still water, is crossing a river (from west to east) The river's current is flowing south at 3.3 m/s. What is the magnitude of the boat’s resultant velocity with respect to the starting point?

a)

3.3 m/s

b)

5.0 m/s

c)

6.0 m/s

d)

8.3 m/s

31.
A hiker walks 5 kilometers due north and then 7 kilometers due east. What is the hiker's resultant displacement?
a)
2 km
b)
8.6 km
c)
12 km
d)
12.6 km
32.

What is the walker's speed from the observer's perspective?

a)

10 mph

b)

40 mph

c)

50 mph

d)

30 mph

33.

What is the horizontal acceleration of a projectile?

a)

0 m/s2

b)

9.8 m/s2

c)

-9.8 m/s2

d)

4.9 m/s2

34.

If you throw a baseball straight up, what is its velocity at the highest point?

a)

9.8 m/s2

b)

9.8 m/s

c)

0 m/s2

d)

0 m/s

35.

If I throw a crayon straight up at 12m/s, how fast is its speed when i catch it at the same height?

a)

6 m/s

b)

12 m/s

c)

18 m/s

d)

24 m/s

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