Mechanics
Quiz by nithyaprakash.it d
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10 questions
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- Q1What is the formula for calculating acceleration?a = (v_f * v_i) / ta = (v_f + v_i) / ta = (v_f - v_i) * ta = (v_f - v_i) / t30s
- Q2Which of the following is an example of a conservative force?Magnetic forceFrictional forceElectric forceGravitational force30s
- Q3What is the law of conservation of momentum?The total momentum of a closed system decreases after a collision.The total momentum of a closed system remains constant before and after a collision.The total momentum of a closed system is always zero.The total momentum of a closed system increases after a collision.30s
- Q4What is the formula for calculating kinetic energy?KE = m * aKE = 0.5 * m * aKE = 0.5 * m * v^2KE = m * v30s
- Q5Which of the following is an example of a scalar quantity?VelocityAccelerationTemperatureForce30s
- Q6Which of the following is a unit of force?Ohm (Ω)Watt (W)Joule (J)Newton (N)30s
- Q7What is the formula for calculating work?W = F * t * sin(theta)W = F * t * cos(theta)W = F * d * cos(theta)W = F * d * sin(theta)30s
- Q8What is the formula for calculating power?P = m * vP = W * tP = F * dP = W / t30s
- Q9What is the formula to calculate velocity?v = d - tv = d/tv = d * tv = d + t30s
- Q10Which of the following is an example of a vector quantity?velocitymasstemperaturetime30s