Lectpharis

PHYSICAL SCIENCE SAMPLE END SEMESTER EXAM. ALL SAMPLE EXAM REVISION PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024 UPDATE) When a solvent is cooled, it will dissolve A. More solid B. More gas C. Less gas D. The same amount of solid or gas - ANSWER- B. More gas The water hardness in an area is reported as 700 ppm total dissolved solids. This is the same concentration as A. 0.007% B. 0.07% C. 0.7% D. 7% - ANSWER- B. 0.07% Hydrogen bond is A. What holds the atoms of the water molecu...

PHYSICAL SCIENCE REVISION QUESTIONS. SAMPLE EXAM REVISION PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024 UPDATE). Law of Conservation of Energy - ANSWER- states that energy cannot be created or destroyed. Chemical Potential Energy - ANSWER- energy stored in chemical bonds Kinetic Energy - ANSWER- is the energy a moving object has because of its motion Elastic Potential Energy - ANSWER- is energy stored by something that can stretch or compress, such as a rubber band or spring Gravitatio...

PHYSICAL SCIENCE REVISION QUESTIONS 2024. END SEMESTER. ALL EXAM REVISION QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED. The number of protons in the atom - ANSWER- The atomic number of an element indicates which of the following? Increase the average thermal energy by adding energy - ANSWER- How can you increase the temperature of a substance? Repulsion between protons - ANSWER- Within the nucleus the stronger nuclear force is more powerful than the el...

PHYSICAL SCIENCE MID TERM EXAM SAMPLE. MIDTERM EXAM REVISION QUESTIONS AND CORRECT ANSWERS (GRADED A+) (100% GUARANTEE) (2024 UPDATE). What are balanced forces? - ANSWER- forces that are equal in size but opposite in direction, balanced forces cause no change in motion, and the object won't move what are unbalanced forces? - ANSWER- forces that cause a change in the motion of an object, they aren't equal and opposite, more than one force can act on an object at the same time What ...

PHYSICAL SCIENCE INTRODUCTION EXAMINATION. ALL EXAM REVISION QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED. Refraction - ANSWER- The bending of a wave as it passes at an angle from one medium to another Voltage - ANSWER- Measure of potential energy generated by separated charge. Magnetosphere - ANSWER- The area surrounding Earth that is influenced by Earth's magnetic field Infrared Waves - ANSWER- Electromagnetic waves that have a wavelength between...

PHYSICAL SCIENCE FINAL EXAM REVISION QUESTIONS FOR 2024. ALL EXAM REVISION QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE). Which best explains what happens to the motion of the pendulum? - ANSWER- A. The mechanical energy transforms to thermal energy as the pendulum slows and eventually stops moving. A battery has chemical energy, which can be used to generate thermal and radiant energy in a lightbulb. Which best explains what happens to the amount of energy in this sce...

PHYSICAL SCIENCE EXAM REVISION QUESTIONS. ALL END YEAR EXAM REVISION QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED. The acceleration due to gravity is lower on the Moon than on Earth. Which of the following is true about the mass and weight of an astronaut on the Moon's surface, compared to Earth? A) Mass is less, weight is same. B) Mass is same, weight is less. C) Both mass and weight are less. D) Both mass and weight are the same - ANSWER- B You a...

PHYSICAL SCIENCE EXAM QUESTIONS. SAMPLE EXAM REVISION PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024 UPDATE). A student is a passenger in the front pf a moving car. Which object is the best frame of reference for the student to determine how fast the car is moving relative to the ground? - ANSWER- a signpost Which time period shows the acceleration of the bicycle? - ANSWER- 8-10 A 200kg load is suspended from a cable on a crane. The load is moved upward at a constant velocity 20 meters ...

PHYSICAL SCIENCE EXAM QUESTION. SAMPLE EXAM REVISION PRACTICE QUESTIONS WITH CORRECT ANSWERS (2024 UPDATE). Which of the following statements about work and energy is not true? - ANSWER- work and energy are always equal Gravitational potential energy depends on the - ANSWER- the mass of the object, the height of the object, the acceleration due to gravity Which of the following is an example of mechanical energy? - ANSWER- potential energy The primary source of the sun's energy is -...

PHYSICAL SCIENCE END YEAR EXAM REVISION QUESTIONS. ALL EXAM REVISION QUESTIONS AND CORRECT ANSWERS (ALREADY GRADED A+) (2024 UPDATE) 100% GUARANTEED, The sky appears to be blue because ______. - ANSWER- blue wavelengths are the most easily scattered in the atmosphere If white light falls on an object and the object reflects all wavelengths of light, the surface will appear to be ______. - ANSWER- white Interference in waves is the ______ together of two or more waves of the same kind t...