Mr K. Physics Semester 1 Final Exam Pt 2

Which of the following is a physical quantity that has a magnitude but no direction?

• vector

• resultant

• scalar

• frame of reference

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

• I

• II

• III

• IV

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

• I

• II

• III

• IV

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

• velocity

• volume

• temperature

• mass

Multiplying or dividing vectors by scalars results in ​ (a)  

• vectors
• scalars
• vectors if multiplied or scalars if divided
• scalars if multiplied or vectors if divided

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

• cos θ

• sin θ

• tan θ

• inverse tan θ

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

• 2

• 3

• 4

• 5

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

• d₁ and d₂

• d₂ and d₅

• d₁ and d₃

• d₄ and d₅

A hiker undergoes a displacement of d₄ as shown in the figure. A single displacement that would return the hiker to his starting point would have which of the following sets of components?

• +d₄, x; -d_4, y

• -d₅, x; -d₅, y

• -d₄, x; -d_4, y

• +d₅, x; -d₅, y

Which of the following is an example of projectile motion?

• a jet lifting off a runway

• dropping an aluminum can into the recycling bin

• a football being kicked

• a space shuttle orbiting Earth