## Browsing Natural & Life Sciences by Title

Now showing items 462-481 of 706

• #### PhysCasts: Acceleration of an Ice Puck ﻿

(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 ﻿

(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 ﻿

(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 ﻿

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

• #### PhysCasts: Buoyancy ﻿

(Swinburne Commons, 2013)
A PhysCast on buoyancy.

• #### PhysCasts: Calculating Density and the Uncertainty in the Density ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

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

• #### PhysCasts: Conduction with Series and Parallel Rods ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

(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 ﻿

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