Seven

Seven

8th Grade

8 Qs

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Seven

Seven

Assessment

Quiz

Science

8th Grade

Practice Problem

Easy

Created by

Humberto Castro

Used 5+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A simple pendulum and a mass-spring are both oscillating with a period of 1 sec. If both systems are taken to the moon (acceleration of gravity roughly 1/6 that of Earth), how will the period of each system change?

Pendulum Period: Increases | Mass-Spring Period: Increases

Pendulum Period: Increases | Mass-Spring Period: No change

Pendulum Period: No change | Mass-Spring Period: Increases

Pendulum Period: No change | Mass-Spring Period: No change

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Where is the kinetic energy of the block zero?

x = -0.3 m

x = 0 m

x = +0.3 m

x = -0.3 m, and x = +0.3 m

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following correctly describes the force and acceleration of the block at x = 0.3 m?

Acceleration = 30 m/s² | Net Force Direction: Positive

Acceleration = 30 m/s² | Net Force Direction: Negative

Acceleration = 0 m/s² | Net Force Direction: Positive

Acceleration = 0 m/s² | Net Force Direction: Negative

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When students collect data about the period of the pendulum, which of the following claims is true?

Experiment 1 = Experiment 2

Experiment 1 = Experiment 3

Experiment 2 = Experiment 3

Each experiment has different results

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A horizontal mass-spring system with mass M is connected to a wall and is oscillating with zero friction. Then the exact same experiment is run with a new mass equal to 2M. How do the period and maximum kinetic energy of the 2M compare to those of the M oscillation?

Period: Larger | Maximum KE: Larger

Period: Smaller | Maximum KE: Same

Period: Larger | Maximum KE: Same

Period: Smaller | Maximum KE: Larger

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A group of students must study the oscillatory motion of a pendulum. One end of a light string is attached to the ceiling, and the other end of the string is attached to a mass hanger. The students want to determine how the length of the pendulum affects the period. Which of the following procedures should they use?

Vary vertical height of release

Vary string length

Vary vertical height and string length

Vary string length and number of disks attached

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A block on a horizontal surface is attached to a horizontal spring of negligible mass. The figure shows a graph of the velocity of the block as a function of time. At which of the following times does the block-spring system have maximum spring potential energy?

1.5 seconds

2.0 seconds

3.5 seconds

4.25 seconds

8.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A simple pendulum consisting of a small object of mass m attached to a string of length L has a period of 5 sec. Which other length of pendulum with the same mass m will have the same period?

L/2

2L

4L

No other length