Physics of Motion and Energy

Physics of Motion and Energy

Assessment

Interactive Video

Physics, Science

5th - 8th Grade

Practice Problem

Hard

Created by

Ethan Morris

FREE Resource

The video tutorial introduces a magnetic accelerator using metal balls on an acrylic track. It explains the concept of potential energy and how energy is transferred between balls, losing energy due to friction and collision. The tutorial further explores the role of magnetic attraction in enhancing energy transfer, demonstrating how a magnetic ball can increase speed and distance. The video concludes with a discussion on the applications of magnetic energy in powerful devices and encourages viewers to subscribe for more experiments.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is placed on the table at the beginning of the experiment?

A wooden plank

An acrylic rail

A metal rod

A plastic tube

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of energy does the metal ball have when it is placed at the top of the rail?

Magnetic energy

Kinetic energy

Thermal energy

Potential energy

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the energy of the ball as it moves back and forth on the rail?

It increases

It remains constant

It fluctuates randomly

It decreases

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is observed when two metal balls are placed in the center and another ball is released from the top?

The energy is transferred between the balls

The balls move faster

The balls stop moving

The balls move in opposite directions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes the balls to lose speed and movement over time?

Air resistance

Magnetic repulsion

Collisions and friction

Gravitational pull

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result when a fourth ball is added to the experiment?

The fourth ball moves in a circle

The fourth ball moves faster and further

The balls move slower

The balls stop moving

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the hidden factor that causes the fourth ball to move faster?

A gust of wind

An electric motor

A powerful magnet

A hidden spring

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