U3 Videos FP 6.1.1

Which coordinate system is typically more convenient for describing the location of an object moving along a circular path with a constant radius?

• Cartesian coordinates (x, y)

• Polar coordinates (r, θ)

• Cylindrical coordinates (ρ, φ, z)

• Spherical coordinates (ρ, θ, φ)

How can the y-coordinate of an object in circular motion be expressed in terms of its polar coordinates, radius (r) and angular position (θ)?

• y = r cos θ

• y = r tan θ

• y = r sin θ

• y = r / sin θ

Are you enjoying the video lesson?

• Yes

• No

What is the linear distance an object travels along a circular path called?

• Angular displacement

• Radius

• Arc length

• Circumference

When using the equation S = rΔθ to calculate arc length, what units must the angular displacement (Δθ) be expressed in?

• Degrees

• Gradians

• Revolutions

• Radians