Physics Study guides, Class notes & Summaries

Pearson Edexcel GCSE In Combined Science (1 SC0) Paper 1CH Mark Scheme Summer 2023

The driver applies the force shown in Figure 8. The force produces a moment about the pivot. How could the driver increase the moment about the pivot without increasing the size of the force? Infrared waves are transverse waves. In a transverse wave, the direction of oscillation is to the direction of energy transfer by the wave. A student investigated how the colour of a surface affects the rate at which the surface emits infrared radiation. Figure 1 shows some of the equipment use...

If I am standing on a bathroom scale in an elevator that is freely falling at g=10 m/s^2, then the reading on the scale will be ______ - zero bc of weightlessness. If no external forces are acting on a moving object, it will ______ - continue moving at the same velocity A horse gallops a distance of 15 kilometers in a time of 30 minutes. Its average speed is ____ - 20 km/hr Your pet hamster sits on a record player whose angular speed is constant. If he moves to a point twice as far...

Displacement - distance and direction of an object's change in position from the starting point distance - how far an object moves balanced forces - forces that are equal in size and opposite in direction; they do not move an object and the net force is equal to zero. average speed - total distance divided by total time instantaneous speed - speed at a given point in time unbalanced forces - forces that are unequal in size and the direction is the same; they cause an object to move ve...

Inertia in motion; an object in motion wants to stay in motion in a straight line - momentum What does momentum depend on? - mass and velocity How is momentum related mass and velocity? - directly to both Which has a greater mass- a heavy truck at rest or a a rolling skateboard? Which has greater momentum? - heavy truck; rolling skateboard Is momentum always constant? - yes, if velocity is constant What would make an object's momentum change? - if an object accelerates when a for...

Physics 1260 Final Exam |Question and Answer| 100% Correct C *Ans* If you look at yourself in a pocket mirror, then hold the mirror farther away, you see A) more of yourself. B) less of yourself. C) the same amount of yourself. B *Ans* Object and image for a plane mirror occur A) along the same plane. B) equal distances from the mirror. C) at right angles to each other. D) all of the above E) none of the above B *Ans* Diffuse reflection occurs when the size of surface irregulariti...

Physics 1260 Exam Study Guide |UPDATED| #Latest Release Two types of charges exist *Ans* Positive and negative Like charges *Ans* repel unlike charges *Ans* attract each other Electrons can *Ans* freely move in conductors, but not in insulators (dielectrics) Conduction *Ans* electric charges move freely in response to an electric force Induction *Ans* materials in which electric charges do NOT move freely b/c all electrons are tightly bound to the nucleus (up to a certain extent) T...

PHYS 1260 Unit 3 Review Questions 2024/2025 Release What does a changing magnetic field induce? A changing magnetic field induces a changing electric field. What does a changing electric field induce? A changing electric field induces a changing magnetic field. What produces an electromagnetic wave? An electromagnetic wave is produced by vibrating electric and magnetic fields. How is the fact that an electromagnetic wave in space never slows down consistent with the conservation of ene...

Radiation Physics Correctly Solved Exam |100% Correct| Graded A+ K-shell electrons *Ans* has the greatest binding energy the electron carries a ____________ charge *Ans* negative 2 or more atoms that are joined by __________ bonds. *Ans* chemical ________________ is when an atom looses an electron *Ans* ionization Radioactivity *Ans* the process by which unstable atoms undergo a spontaneous disintegration in an effort to attain a more balanced nuclear state. Matter *Ans* anything that ...