About This

• * The forced vibration and resonance demonstrator mainly demonstrates the vibration of the object under the action of external force and the experiment of the vibration of the object under certain conditions.
• * The instrument consists of a bracket, five steel balls with different pendulum lengths, and a pendulum.
• * Incredible physical laboratory equipment aid tool, or as a decoration in your lab,making physical experiment learning more efficient.
• * This forced vibration and resonance demonstrator is mounted on a plastic frame.
• * Good for school teaching tool, learning display, and collectibles, also will be a great addition to your lab supplies.