Frequency is defined as __________.

• The number of occurrences of a repeating event per unit of time

• The speed of an object in motion

• The distance between two points

• The amount of space an object occupies

Tags

NGSS.HS-PS4-1

If you increased the length by a factor of 4, how much would the period change?

• The period would double

• The period would quadruple

• The period would remain the same

• The period would decrease by a factor of 2

The period of a pendulum that is 1.0 m long on earth is:

• 1.0 s

• 2.0 s

• 3.0 s

• 0.050 s

What is the period of a pendulum that is 1.0 m long on the Moon where gravity is 6 times less than Earth?

• 6.0 seconds

• 12 seconds

• 3.5 seconds

• 4.9 seconds

Tags

NGSS.HS-PS2-4

If a pendulum is 1.45 m long and has a period of 2.34 s, what is the value of gravity?

• 9.81 m/s²

• 10.5 m/s²

• 9.75 m/s²

• 9.90 m/s²

Tags

NGSS.HS-PS2-4

Hooke's Law states that the force needed to extend or compress a spring by some distance is proportional to that distance. Which of the following equations represents Hooke's Law?

• F = kx

• F = ma

• E = mc^2

• V = IR

What does the k represent, and what are the SI units?

• k represents the spring constant, and the SI unit is N/m.

• k represents the Boltzmann constant, and the SI unit is J/K.

• k represents the rate constant, and the SI unit is s^-1.

• k represents the thermal conductivity, and the SI unit is W/(m·K).

A spring has a spring constant of 3.21 N/cm. How much force is required to compress the spring 0.50 m?

• 160 N

• 1.6 N

• 640 N

• 6.4 N

Tags

NGSS.HS-PS2-1

If a force of 4321 N is applied to a spring with a spring constant of 567 N/cm, how much is the spring changed?

• 7.62 cm

• 8.62 cm

• 9.62 cm

• 10.62 cm

A mass of 1234 g is suspended from a spring. The spring expands a distance of 5.67 cm. Find the spring constant.

• 2.17 N/m

• 2130 N/cm

• 217 N/cm

• 2.13 N/cm

Tags

NGSS.HS-PS2-1