Physics Sweatshirt — Staying Put Unless Moved (Cat Version) | Newton's Law

Our witty and educational "Staying Put Unless Moved" sweatshirt humorously illustrates Newton's First Law of Motion, also known as the Law of Inertia, with a playful graphic of a lazy cat lounging on a couch.

Newton's First Law of Motion: This law states that an object at rest will stay at rest, and an object in motion will continue in motion at a constant velocity, unless acted upon by an external force. This principle, known as inertia, is a cornerstone of classical mechanics and helps explain why objects resist changes to their state of motion.

Celebrate science with this stylish sweatshirt. Perfect for casual wear, classroom demonstrations, or as a gift for science enthusiasts!

Fit / Fabric / Construction

Unisex fit
Solid Color: 50% cotton, 50% polyester; Heather: 40% cotton, 60% polyester; feels cozy and provides warmth, making it perfect for colder months
Without Side Seams: Knit in one piece using tubular knit, reducing fabric waste and enhancing the garment's appearance
Ribbed Knit Collar with Seam: Ribbed knit makes the collar highly elastic and helps retain its shape

Care Instructions

Machine wash: cold (max 30C or 90F)
Non-chlorine: bleach as needed
Tumble dry: low heat
Do not iron or dry clean

Shipping / Returns

Free standard shipping in the United States.
Made to order: please allow 3–5 business days for production.
U.S. delivery: typically 7–10 business days after production.
International delivery: typically 10–20 business days after production; customs processing may add time.
Returns: request a return within 30 days of delivery for eligible unworn, unused items. Gift cards and personalized items are not returnable. Read our Return Policy.