Q2 General Physics 1 Reviewer PDF

**Q2 GENERAL PHYSICS 1 REVIEWER** - **A body in static equilibrium if the net torque acting upon the object must be equal to zero.** - Newton's Law of Gravitation. - Imfortance of gravitational force - ***It acts at a distance without any direct contact between bodies.*** - **...

**Q2 GENERAL PHYSICS 1 REVIEWER** - **A body in static equilibrium if the net torque acting upon the object must be equal to zero.** - Newton's Law of Gravitation. - Imfortance of gravitational force - ***It acts at a distance without any direct contact between bodies.*** - ***It is responsible for holding our earth together and for keeping the planets in orbit around the sun.*** - ***It does not act between ordinary household-sized objects, therefore ensuring all household objects to be in place.*** - ***The mutual gravitational attraction between different parts of the sun makes it possible for nuclear reactions to take place.*** - Kepler's three laws of motion - Simple harmonic motion - ***A body whose acceleration is proportional to its displacement from a certain equilibrium position and opposite to its displacement.*** - ***A body having its displacement from the equilibrium position continuously changing.*** - ***The system's potential energy and kinetic energy vary with time.*** - ***An object is displaced by a force from an equilibrium position.*** - Critically damped motion of an object - Longitudinal wave - The superposition of waves described qualitatively - The scenarios when one end of the string is tied, and the other end is continuously moved up and down. - The relationship between pressure and the magnitude of the force applied - Pressure in relation to the depth in a fluid - Application of Pascal\'s principle in a hydraulic system where a force is applied to a small piston and transmitted to a larger piston. - Why does an iron nail sink inside the water while the large ships do not? - According to Bernoulli's principle, airplanes fly because - The connection between thermal equilibrium and zeroth law of thermodynamics - 0 Kelvin is to **-273.15°C** - Thermal expansion - The properties of an ideal gas - ***Gas molecules have elastic collisions.*** - ***Gases are made up of very tiny molecules.*** - ***Gas molecules show no attraction for one another.*** - ***Gas molecules demonstrate rapid motion, move in a straight line, and travel in random directions**.* - Thermodynamic process become irreversible - Compare to that in an isobaric process - The San Juanico Bridge that stretches from Samar to Leyte has a total length of 2,164 m at 22ºC. On a hot summer day, the temperature increases to 40ºC. Which of the following values is the change in length due to linear expansion? Assume that the bridge is made entirely of steel. *(Coefficient of linear expansion of steel is* [1.2 *x*10^ − 5^)]{.math.inline} 58. - At a constant temperature, an ideal gas is compressed from 6.0L to 4.0 L by a constant external pressure of 5.0 atm. How much work is done on the gas? **W = + 10 L-atm** - The ideal heat engine operates between two temperatures of 600K and 900K. Which of the following percentages is the efficiency of the engine? - **Ben uses a Lazy Susan tray being rotated in quest of sustenance. Suppose he exerts a 2.50 N force perpendicular to the lazy Susan's 0.260-radius for 0.150 s. Which of the following values is the final angular momentum of the lazy Susan as it starts from rest, assuming friction is negligible?** - Dan and Dona are balanced in a seesaw of negligible mass. Dan has a mass of 26.0 kg and sits 1.60 m from the pivot. If Dona has a mass of 32.0 kg, how far is she from the pivot? - How much is the moment of inertia of a disc with mass of 2 kg and radius of 20 cm with an axis passing through the center and perpendicular to the plane of the disc? - How much force would Claire have to apply perpendicular to create 250 Nm of torque 0.50 meters away from the bolt she is trying to loosen? **500 N** - **If an object's angular acceleration is 3 rad/s^2^, and it reaches an angular velocity of 15 rad/s in 5 seconds, how far did it rotate during this time?** - A 5-kg object is lifted to a height of 10 m above the ground. How much work is done on the object in lifting it? - Given that the Moon orbits Earth each 27.3 d and that it is an average distance of [3.84 *x*10^8^]{.math.inline} m from the center of Earth, how long is the period of an artificial satellite orbiting at an average altitude of 1500 km above Earth's surface? - A 4-kg block of wood attached to a spring is observed to oscillate for a period of 2 seconds. How long is the period of oscillation if an additional block of wood with a mass of 6 kg is added to the spring? **2.45 s** - Which of the following distances would result in a decrease in intensity by a factor of 9, if the initial distance from the source is 2 meters?