Browsing Natural & Life Sciences by Title

Now showing items 462-481 of 706

  • PhysCasts: Acceleration of an Ice Puck 

    Hall, B. (Brenton) (Swinburne Commons, 2014)
    A 0.20 kg puck upon a frictionless ice surface is acted on by the forces shown in the diagrams. Find the resulting accelerations?

  • PhysCasts: An Unknown Oscillation Frequency 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    This PhysCast is about simple harmonic motion. Two springs are attached to a block which can oscillate on a frictionless floor. If the left spring is removed it oscillates at a frequency of 30 Hz. If instead the right ...

  • PhysCasts: Analyzing Laboratory Data 

    Hall, B. (Brenton) (Swinburne Commons, 2014)
    This PhysCast focuses on the laboratory analysis techniques that you are required to use in energy and motion in the 5 labs.

  • PhysCasts: Archimedes' Principle: Concept 

    Edwards, T. (Tom) (Swinburne Commons, 2013)
    Suppose you wanted to find the density of that odd looking shape. Here is one way of doing it.

  • PhysCasts: Buoyancy 

    Edwards, T. (Tom) (Swinburne Commons, 2013)
    A PhysCast on buoyancy.

  • PhysCasts: Calculating Density and the Uncertainty in the Density 

    Hall, B. (Brenton) (Swinburne Commons, 2014)
    This is a numerical error propagation example where we're asked to find the density and uncertainty in density of two objects.

  • PhysCasts: Calculating the Thermal Speed of Oxygen Gas 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In this PhysCast we are asked to find the average translational kinetic energy and the thermal speed of oxygen gas molecules.

  • PhysCasts: Calorimetry with Ice Water Mixture 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In this question a 50 g ice cube is dropped into 200 g of water in a thermally insulating container. If the water is initially at 25 degrees C and the ice comes from the freezer at -15 degrees C, what is the equilibrium ...

  • PhysCasts: Calorimetry with Steam-Ice Mixture 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In this question we are asked what mass of steam at 100 degrees C must be mixed with 150 g of ice at its melting point in a thermally insulating container to produce water at 50 degrees C?

  • PhysCasts: Center of Mass of Continuous Object Using Symmetry 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In this PhysCast we are asked to find the centre of mass of a hexagon with six equal sides of length a, but where one of the triangles is missing.

  • PhysCasts: Centre of Mass 

    Edwards, T. (Tom) (Swinburne Commons, 2013)
    A PhysCast on centre of mass.

  • PhysCasts: Conduction with Series and Parallel Rods 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In Figure (a), two identical retangular rods of metal are welded end to end, with T1 = 0 degrees C a left side and T2 = 1-- degrees C on the right side. In 2.0 min 10 J is conducted at a constant rate from the right to ...

  • PhysCasts: Constructing a Travelling Wave Equation 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    This PhysCast deals with constructing a wave equation from some given information in a diagram.

  • PhysCasts: Cyclist Accelerated by the Wind: A 2-D Vector Problem 

    Rowlands, W. (Wayne) (Swinburne Commons, 2013)
    We are going to look at a problem that is an example of a 2-d vector calculation. A cyclist travels along a horizontal road and 5.5 m/s. A strong wind blows from one side for 1 minute, after which the cyclist is moving at ...

  • PhysCasts: Damped Simple Harmonic Motion 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    This PhysCast deals with simple harmonic motion where dampening is present. The amplitude of a lightly damped oscillator decreases by 3.0% during each cycle. a) What percentage of the mechanical energy is lost in each ...

  • PhysCasts: Determining the Acceleration of a Cylinder Rolling Down a Slope 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    In this PhysCast we are asked to consider the motion of a uniform cylinder of mass m and radius R as it rolls smoothly down a ramp at angle theta to the horizontal. We are asked to find an expression for the linear ...

  • PhysCasts: Energy and Rotational Motion 

    Cook, E. (Emily) (Swinburne Commons, 2013)
    This question is about energy and rotational motion. A bowler bowls a 160g cricket ball with a diameter of 7cm with a linear velocity of 144km/h. The ball is measured to rotate at 22250 r.p.m. What proportion of the ball's ...

  • PhysCasts: Energy Conservation in a Vertical Mass Spring System 

    Hall, B. (Brenton) (Swinburne Commons, 2013)
    This PhysCast examines the question: we have a mass-less spring with k = 74 N/m and it is hanging from the ceiling.

  • PhysCasts: Energy in Rotation: Anchor Example 

    Cook, E. (Emily) (Swinburne Commons, 2013)
    This problem is worked through: an anchor of mass 500kg is attached to a light cable that passes over a roller of negligible mass and winds around a hollow cylindrical drum of radius 1.2m and mass 250kg which can rotate ...

  • PhysCasts: Error Propagation 

    Hall, B. (Brenton) (Swinburne Commons, 2014)
    In this PhysCast we look at how you can propagate errors in laboratory measurements.