2005 - WAEC Physics Past Questions and Answers - page 2
The frequency of a swinging pendulum is the
Which of the following about an object performing simple harmonic motion is correct? Its acceleration
A body of mass 5kg moving with a velocity of 10ms-1 collides with a stationary body of mass 6kg. If the two bodies stick together and move in the same direction after their collision, calculate their common velocity
Fuel was consumed at a steady rate of 5.0 x 10-2kg per second in a rocket engine and ejected as a gas with a speed of 4 x 103ms-1. Determine the thrust on the rocket
Which of the following quantities has the same unit as energy?
Which of the following source of energy is renewable?
The lower and upper fixed point of a thermometer are 30mm and 180mm respectively. Calculate the temperature in degrees Celsius when the thermometer reads 45mm
A body of mass m, has a specific heat capacity s, and a heat capacity c. If the temperature of the body changes by (\theta^oC), Which of the following equation is correct?
An immersion heater rated 400W, 220V is used to heat a liquid of mass 0.5kg. If the temperature of the liquid increases uniformly at the rate of 2.5oC per second, calculate the specific heat capacity of the liquid. [Assume no heat is lost]
Water falls through a height of 50m. Determine the temperature rise at the bottom of the fall. [Neglect energy losses. Specific heat capacity of water = 4200Jkg-1 K-1, g = 10ms2]