Springs and pendulums
Grade 11 Science Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
A 2 kg mass bounces on a spring with a spring constant of 50 N/m. What is its period, to the nearest hundredth, Bo?
A 0.2 kg mass bounces on a spring with a spring constant of 80 N/m. What is its period, to the nearest hundredth, Esme?
A pendulum timer must have a period of 1 s. With g = 9.8 m/s², about how long must its string be, Jun?
- About 0.25 m
- About 1.56 m
- About 1 m
A pendulum with a 0.25 m string has a 1 s period. What length gives a 2 s period, Kira?
- 0.5 m
- 1 m
- 2 m
A mass bounces on a spring with a 1 s period. What spring keeps the mass but halves the period, Luz?
- One with 4 times the spring constant
- One with half the spring constant
- One with twice the spring constant
Milo says a heavier bob makes a pendulum clock run slower. Agree or disagree?
- Agree: more mass needs more time
- Agree: heavier bobs swing more slowly than light ones
- Disagree: the period depends on length, not mass
Noah says a heavier mass on the same spring bounces more slowly. Agree or disagree?
- Disagree: heavier masses bounce faster
- Disagree: mass can't change a period
- Agree: T = 2π√(m ÷ k)
Pia says pulling a pendulum bob back a little farther (still a small swing) changes its period a lot. Agree or disagree?
- Agree: a bigger swing is much quicker
- Agree: a bigger swing takes much longer to complete
- Disagree: small swings keep the same period
A pendulum is taken from Earth (g = 9.8 m/s²) to the Moon (g = 1.62 m/s²). What happens to its period, Ren?
- It gets about 6 times longer
- It stays the same
- It gets about 2.46 times longer
Which timer would keep the same time on Earth and on the Moon, Zee?
- Neither of them
- A mass bouncing on a spring
- A bob on a string