Quiz 1

A force of 30 N stretches a very light ideal spring 0.73 m from equilibrium. What is the force constant (spring constant) of the spring?

• 41 N/m

• 34 N/m

• 46 N/m

• 22 N/m

A 4.8-kg block attached to an ideal spring executes simple harmonic motion on a frictionless horizontal surface. At time t = 0.00 s, the block has a displacement of -0.90 m, a velocity of -0.80 m/s, and an acceleration of +2.9 m/s/s. The force constant (spring constant) of the spring is closest to

• 14 N/m

• 15 N/m

• 16 N/m

• 17 N/m

Which would have the longest period?

Pendulum A: A 200-g mass attached to a 1.0-m length string

Pendulum B: A 400-g mass attached to a 0.5-m length string

• A

• B

• Same

A pendulum is 0.75 meters long and has a period of 4.17 seconds. The Pendulum is on an unknown planet. What is the gravity of the Unknown Planet?

• 9.8

• 1.7

• 3.4

• Greater than 9.8

In a transverse wave, particles move...?

• vertically

• up and down

• back and forth

• wherever the matter's going

What kind of wave can travel through space?

• transverse waves

• compressional waves

• longitudinal waves

• electromagnetic waves

A wave carries...?

• energy only

• matter only

• the matter carries the energy

• neither

How does light travel?

• in all directions

• in a zig zag line

• in transverse waves

• back and forth

Solve this problems using the equation: C = λ x f

If an AM radio station broadcasts at 995 kHz, what is the wavelength of this radiation? (Convert to Hz first)

• 6.59 x 10^-28 m

• 1.01 x 10^-6 m

• 301 m

• 3.32 x 10^-3 m

Violet light has a wavelength of 410 nm. What is the frequency?

• 1.23 x 10^-3 Hz

• 1.37 x 10¹² Hz

• 7.31 x 10¹⁴ Hz

• 3.08 x10⁸ Hz