Category: Forces & Interactions

E 2: Energy & Motion (HS), E 2: Potential Energy (MS), E 5: Kinetic Energy Transfer (MS), Energy, F&I 2: Newton's 3rd Law (HS), F&I 3: Shock Absorbers (HS), Forces & Interactions

Contributions of Limb Joints to Energy Absorption during Landing in Cats

GwynneL.

Contributions of Limb Joints to Energy Absorption during Landing in Cats SUMMARY: How is it that cats are able to jump down from high places and not hurt themselves? Researchers in this study observed 5 cats, jumping from various heights, for clues as to what sorts of forces and shock absorbers were at work. The… Continue reading Contributions of Limb Joints to Energy Absorption during Landing in Cats

F&I 1: Newton's 2nd Law (HS), F&I 1: Newton's 3rd Law (MS), F&I 2: Newton's 1st Law (MS), F&I 2: Newton's 3rd Law (HS), Forces & Interactions, Physical Science, S&P 2: Synthetic Materials (MS), Structure & Properties of Matter

Anchoring like octopus

GwynneL.

Anchoring like octopus SUMMARY: In this experiment, scientists tried to reproduce an anchoring mechanism modeled after octopus suckers. There were a few important aspects they wanted to mimic: the softness of the suckers so that suction could be maintained, even on rough surfaces. And the ability to sense proximity and tactile stimuli. They ended up… Continue reading Anchoring like octopus

E 1: Energy Flow (HS), E 1: Energy, Mass, & Speed (MS), E 2: Energy & Motion (HS), E 2: Potential Energy (MS), E 5: Kinetic Energy Transfer (MS), Energy, F&I 1: Newton's 2nd Law (HS), F&I 1: Newton's 3rd Law (MS), F&I 2: Newton's 1st Law (MS), F&I 2: Newton's 3rd Law (HS), F&I 4: Gravity & Electrostatic Forces (HS), F&I 4: Gravity & Mass (MS), Forces & Interactions, Physical Science

The meaning of blood pressure

GwynneL.

The meaning of blood pressure SUMMARY: This article talks about all the physical aspects of blood pressure. The first few sections talks about the 3 forces that affect blood pressure: elastic, kinetic, and gravitational. The author also talks about how kinetic energy can be converted to elastic energy in the case of an aneurysm in… Continue reading The meaning of blood pressure

F&I 1: Newton's 2nd Law (HS), F&I 1: Newton's 3rd Law (MS), F&I 2: Newton's 1st Law (MS), F&I 2: Newton's 3rd Law (HS), F&I 3: Electric/Magnetic Forces (MS), F&I 4: Gravity & Electrostatic Forces (HS), F&I 4: Gravity & Mass (MS), F&I 5: Electricity & Magnets (HS), F&I 5: Force Fields (MS), Forces & Interactions, Physical Science, S&P 2: Investigating Electrical Force (HS), Structure & Properties of Matter, W 1: Graphing Waves (MS), W 1: Wave Relationships (HS), W 2: Wave Behavior (MS), W 3: Modeling Electromagnetic Radiation (HS), Waves & Electromagnetic Radiation

The physics of pollinator attraction

GwynneL.

The physics of pollinator attraction SUMMARY: This article focuses on the physical properties of plants that have evolved to help them select the appropriate pollinators and discourage non-pollinators (nectar stealers). The first feature the article addresses is the shape of the cells. Flower petals often have cone-shaped cells to help scatter more light. This gives… Continue reading The physics of pollinator attraction

E 5: Energy from Electric/Magnetic Fields (HS), Energy, F&I 3: Electric/Magnetic Forces (MS), F&I 4: Gravity & Electrostatic Forces (HS), F&I 5: Electricity & Magnets (HS), F&I 5: Force Fields (MS), Forces & Interactions, Physical Science, S&F 2: Body Systems (HS), S&F 3: Body Systems (MS), S&P 1: Atoms & Molecules (MS), S&P 1: Periodic Table Patterns (HS), S&P 2: Investigating Electrical Force (HS), Structure & Properties of Matter, Structure and Function, W 2: Digital Info (HS), W 3: Modeling Electromagnetic Radiation (HS), W 4: Effects of E-magnet Radiation (HS), W 5: Devices (HS), Waves & Electromagnetic Radiation

Electronic Tongues

GwynneL.

A Versatile Electronic Tongue Based on Surface Plasmon Resonance Imaging and Cross-Reactive Sensor Arrays-A Mini-Review SUMMARY: Scientists are trying to create electronic tongues (eT) and noses (eN) that act like human tongues and noses. These artificial sensors are different from traditional sensors in that they don’t recognize individual molecules, but heterogeneous liquids and gases. In… Continue reading Electronic Tongues

E 1: Energy, Mass, & Speed (MS), E 2: Energy & Motion (HS), Earth Science, Energy, F&I 1: Newton's 2nd Law (HS), F&I 1: Newton's 3rd Law (MS), F&I 2: Newton's 1st Law (MS), F&I 2: Newton's 3rd Law (HS), F&I 4: Gravity & Mass (MS), F&I 5: Force Fields (MS), Forces & Interactions, Life Science, Physical Science, S&F 2: Body Systems (HS), S&F 3: Body Systems (MS), Space Systems, SS 2: Gravity (MS), Structure and Function

Microgravity and the Respiratory System

GwynneL.

Microgravity and the Respiratory System SUMMARY: What are the effects of gravity on lung function? This study first breaks down how gravity works and its effects on living organisms. The second section explains lung function with and without gravity. Finally, the last sections look at the difference in lung function during and after short and… Continue reading Microgravity and the Respiratory System