Free Printable Physics Q3 C1

1.

Which of the following is the best coordinate system to analyze a painter climbing a ladder at an angle of 60 $\degree$ to the ground?

a)

x-axis: horizontal long the ground; y-axis: up and down

b)

x-axis: along the ladder; y-axis: up and down

c)

x-axis: horizontal along the ground: y-axis: along the ladder

d)

x-axis: along the ladder; y-axis: horizontal along the ground

2.

Identify the following qualities as scalar or vector: the speed of a snail, and the time it takes to run a mile, the free fall acceleration.

a)

scaler, scaler, vector

b)

vector, scaler, vector

c)

scaler, vector, vector

d)

vector, scaler, scaler

3.

What is the path of a projectile (in the absence of Friction)?

a)

a wavy line

b)

projectiles do not follow a predictable path

c)

a parabola

d)

a hyperbola

4.

How many displacement vectors shown in the figure above have components that lie along the y-axis and are pointed in the -y direction?

a)

0

b)

3

c)

5

d)

2

5.

How many displacement vectors shown in the figure have horizontal components?

a)

3

b)

5

c)

2

d)

4

6.

Which displacement vectors shown in the figures above have vertical components that are equal?

a)

$d_{1\ }and\ d_2$

b)

$d_4and\ d_5$

c)

$d_{1\ }and\ d_3$

d)

$d_{2\ }and\ d_5$

7.

In the figure above, which diagram represents the vector subtraction C+A-B?

a)

I

b)

IV

c)

II

d)

III

8.

In the figure above, which diagram represents the vector addition C=A+B?

a)

II

b)

I

c)

IV

d)

III

9.

A student walks from the door of the house to the end of the driveway and realizes that he missed the bus. The student runs back to the house, traveling three times as fast. Which of the following is the correct expression for the return velocity if the initial velocity is $v_{student}$ ?

a)

$\frac{1}{3}v_{student}$

b)

$-\frac{1}{3}v_{student}$

c)

$3v_{student}$

d)

$-3v_{student}$

10.

An ant on a picnic table travels $3.0x10^1$ cm eastward, then 25cm northward, and finally 15cm westward. what is the magnitude of the ants displacement relative to its original position?

a)

52cm

b)

70cm

c)

57cm

d)

29cm

11.

Which of the following exhibits parabolic motion?

a)

A space shuttle orbiting the Earth

b)

a leaf falling from a tree

c)

A stone thrown into a lake

d)

a train moving along a glot track

12.

A car travels down a road at a certain velocity, $v_{car}$ . The driver slows down so that the care is traveling only half as fast as before. Which of there following is the correct expression for the resulting velocity?

a)

$2v_{car}$

b)

$-\frac{1}{2}v_{car}$

c)

$\frac{1}{2}v_{car}$

d)

$-2v_{car}$

13.

For the winter, a duck flies 10.0m/s due south against a gust of wind with a speed of 2.5m/s. What is the resultant velocity of the duck?

a)

12.5 m/s south

b)

7.5 m/s south

c)

-7.5 m/s south

d)

-12.5 m/s south

14.

Identify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity

a)

vector, scalar, vector

b)

scalar, vector, scalar

c)

vector, scalar, scalar

d)

scalar, scalar, vector

15.

Multiplying or dividing vectors by scalars results in

a)

vectors

b)

vectors if multiplied, or scalars if divided

c)

scalars

d)

scalars if multiplied or vectors if divided

16.

In a coordinate system, the magnitude of the x component of a vector and 0, the angle between the vector and x-axis, are known. The magnitude of the vector equals the x component

a)

multiplied by the cosine of 0

b)

divided by the sine of 0

c)

divided by the cosine of 0

d)

multiplied by the sine of 0

17.

Which of the following is an example of a vector quantity?

a)

temperature

b)

mass

c)

velocity

d)

volume

18.

In a coordinate system, a vector is oriented at angle 0 with respect to the x-axis. The x component of the vector equals the vector's magnitude multiplied by which trigonometric functions?

a)

sin 0

b)

cos 0

c)

cot 0

d)

tan 0

19.

Which of the following is the motion of objects moving in two dimensions under the influence of gravity?

a)

horizontal velocity

b)

directirix

c)

vertical velocity

d)

projectile motion

20.

A football player runs in one direction to catch a pass, then turns and runs twice as fast in the opposite direction toward the goal line. Which of the following is a correct expression for the original velocity and the resulting velocity?

a)

$v_{player,\ 2v_{player}}$

b)

$2v_{player,\ }-v_{player}$

c)

$-v_{player,\ }-2v_{player}$

d)

$v_{player,\ }-2v_{player}$

Physics Q3 C1

Total questions: 20

Worksheet time: 10mins

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