Magnitude and direction Study guides, Revision notes & Summaries

scalar - correct answer quantity that represents only magnitude, e.g., time, temperature, or volume. It is expressed using a single number, including any units. vector - correct answer quantity that represents magnitude and direction. It is commonly used to represent displacement, velocity, acceleration, or force. Displacement (s) - correct answer the distance and direction of a body's movement (an airplane flies east 100 nm). Velocity (V) - correct answer the speed and directi...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

When imaging a geriatric patient, while performing a PCA MRA sequence, what imaging parameter might the operator adjust? A. Field of view B. Presaturation band location C. Slice thickness D. VENC E. Contrast injection rate CORRECT ANSWER VENC As the number of phase encodings is increased from 256 to 512, SNR (signal to noise ratio): A. Increases B. Decreases C. Doubles D. Does not change E. Quadruples CORRECT ANSWER Decreases A magnetic vector possesses attributes of bo...

When imaging a geriatric patient, while performing a PCA MRA sequence, what imaging parameter might the operator adjust? A. Field of view B. Presaturation band location C. Slice thickness D. VENC E. Contrast injection rate - correct answer VENC As the number of phase encodings is increased from 256 to 512, SNR (signal to noise ratio): A. Increases B. Decreases C. Doubles D. Does not change E. Quadruples - correct answer Decreases A magnetic vector possesses attribut...

Physics MCQ Key - Questions and Answers (Complete Solutions) A ball of mass 0.4 kg is initially at rest on the ground. It is kicked and leaves the kicker's foot with a speed of 5.0 m/s in a direction 60° above the horizontal. The magnitude of the impulse imparted by the ball to the foot is most nearly 2 N*s A force of constant magnitude F and fixed direction acts on an object of mass m that is initially at rest. If the force acts for a time interval Δt over a displacement Δx , what is the ...

Conceptual Physics Practice Test Questions and Answers Speed - Answer-How fast an object moves; the distance traveled per unit of time. Instantaneous speed - Answer-The speed at any instant. Average speed - Answer-The total distance traveled divided by the time of travel. Velocity - Answer-An object's speed and direction of motion. Vector quantity - Answer-A quantity that has both magnitude and direction. Scalar quantity - Answer-A quantity that has only a magnitude, not a dir...

EDF 6223 Exam 1 Questions and Answers 100% Pass _____________is also called identity matching. This is the act of the subject matching the primary stimulus to the target stimulus. Showing a picture of a bird and the child saying "bird." reflexivity _____________ refers to the two-way relationship of matching. For example, show a picture of a bird and say "bird." Point to the picture of the bird, and the subject says "bird." symmetry _____________ occurs when the equation if A = B and if...

GCSE AQA [TRIPLE] Physics AQA PSYCHOLOGY PAPER 2 LATEST EXAM 2024 EXPERT CERTIFIED QUESTIONS AND ANSWERS Difference between scalar and vector: - CORRECT ANSWER--scalar = magnitude only -vector = direction and magnitude The only vector quantities are: - CORRECT ANSWER-- acceleration -velocity -force -displacement -momentum -weight Force - CORRECT ANSWER--a push or a pull Balanced forces - CORRECT ANSWER--when 2 forces acting on an object are equal in size but act in opposite dire...

Scalar - ANS-quantities with only magnitude such as speed, distance, time and mass. Vector - ANS-quantities with a magnitude and direction e.g. acceleration, force momentum and weight. A vector quantity can be represented as an arrow, the size representing the magnitude and the direction, the direction.

Edexcel GCSE Triple Science Physics Paper 2 2024 WITH QUESITIONS AND ANSWERS GRADED A+ Difference between scalar and vector: - CORRECT ANSWER--scalar = magnitude only -vector = direction and magnitude The only vector quantities are: - CORRECT ANSWER--acceleration -velocity -force -displacement -momentum -weight Force - CORRECT ANSWER--a push or a pull Balanced forces - CORRECT ANSWER--when 2 forces acting on an object are equal in size but act in opposite direction What is Newton...