true or false questions
... A bug on a turning record will make more turns per minute if it walks toward the center of the record. Ladybugs on the inside of a spinning bicycle tire will experience a force that feels like gravity to them. In order to increase his or her rotational inertia, a tightrope walker can carry a long st ...
... A bug on a turning record will make more turns per minute if it walks toward the center of the record. Ladybugs on the inside of a spinning bicycle tire will experience a force that feels like gravity to them. In order to increase his or her rotational inertia, a tightrope walker can carry a long st ...
Chapter 2: Reading Guide
... 11. Suppose you exert a horizontal push of a crate that rests on a level floor, and it doesn’t move. How much friction acts on the crate compared to your push? Explain! Since the crate is NOT moving, it is in static equilibrium with a Fnet of 0. If the Fnet = 0, then all the forces balance or cancel ...
... 11. Suppose you exert a horizontal push of a crate that rests on a level floor, and it doesn’t move. How much friction acts on the crate compared to your push? Explain! Since the crate is NOT moving, it is in static equilibrium with a Fnet of 0. If the Fnet = 0, then all the forces balance or cancel ...
Force
... -friction acts in a direction opposite to the direction of the motion -2 Factors that affect the force of friction - how hard the surfaces push together -types of surfaces involved -4 Types of Friction -Static Friction -Sliding Friction -Rolling Friction -Fluid Friction Gravity -Law of Universal Gra ...
... -friction acts in a direction opposite to the direction of the motion -2 Factors that affect the force of friction - how hard the surfaces push together -types of surfaces involved -4 Types of Friction -Static Friction -Sliding Friction -Rolling Friction -Fluid Friction Gravity -Law of Universal Gra ...
Biomechanics explains the way we move our bodies. It is a science
... Everyone unconsciously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects. ...
... Everyone unconsciously knows the Second Law. Everyone knows that heavier objects require more force to move the same distance as lighter objects. ...
Science - Chaparral Middle School
... 11) Once a roller coaster ride is given its initial energy, it doesn’t require any more energy to complete the ride. We say it has enough momentum to reach the end. If a car full of riders weighs 1000 kg, and has a momentum of 4200 kg m / sec, how fast is the car moving (on average) in feet per se ...
... 11) Once a roller coaster ride is given its initial energy, it doesn’t require any more energy to complete the ride. We say it has enough momentum to reach the end. If a car full of riders weighs 1000 kg, and has a momentum of 4200 kg m / sec, how fast is the car moving (on average) in feet per se ...
Study Guide Part 2
... ____: a force that resists sliding between two touching surfaces or through air or water. Friction ___ an object’s motion. ____ friction– the type of friction that prevents an object from moving when a force is ...
... ____: a force that resists sliding between two touching surfaces or through air or water. Friction ___ an object’s motion. ____ friction– the type of friction that prevents an object from moving when a force is ...
Torque 1
... 3. The moment arm of the biceps brachii muscle about the elbow joint is largest when the angle at the elbow joint is approximately a. 180° (fully extended) b. 150° c. 120° d. 90° e. The angle of the elbow joint doesn't affect the moment arm of the biceps brachii muscle. 4. A weightlifter is attempti ...
... 3. The moment arm of the biceps brachii muscle about the elbow joint is largest when the angle at the elbow joint is approximately a. 180° (fully extended) b. 150° c. 120° d. 90° e. The angle of the elbow joint doesn't affect the moment arm of the biceps brachii muscle. 4. A weightlifter is attempti ...
Week 17 - Crossroads Academy
... • Scalar… a scalar quantity has only magnitude (number or amount). Examples of scalar quantities are: time, the mass of an object, the volume of an object, and density. • Vector… a vector quantity has both magnitude (number) and direction. Examples of vector quantities that we will discuss in class ...
... • Scalar… a scalar quantity has only magnitude (number or amount). Examples of scalar quantities are: time, the mass of an object, the volume of an object, and density. • Vector… a vector quantity has both magnitude (number) and direction. Examples of vector quantities that we will discuss in class ...
Artificial gravity
Artificial gravity is the theoretical increase or decrease of apparent gravity (g-force) by artificial means, particularly in space, but also on Earth. It can be practically achieved by the use of different forces, particularly the centripetal force and linear acceleration.The creation of artificial gravity is considered desirable for long-term space travel or habitation, for ease of mobility, for in-space fluid management, and to avoid the adverse long-term health effects of weightlessness.A number of methods for generating artificial gravity have been proposed, as well as an even larger number of science fiction approaches using both real and fictitious forces. Practical outer space applications of artificial gravity for humans have not yet been built and flown, principally due to the large size of the spacecraft required to produce centripetal acceleration.