Physics Notes
Leaving Cert Physics Acceleration, Force, Momentum, Energy long questions
Remember to photocopy 4 pages onto 1 sheet by going A3→A4 and using back to back on the photocopier
2012 - 2002
Solutions to ordinary level questions begin on page 11
Solutions to higher level questions begin on page 19
Velocity
2010 Question 12 (a) [Higher Level] (i) A student holds a motion sensor attached to a data-logger and its calculator.
List the instructions you should give the student so that the calculator will display the graph shown in Fig 1.
(ii) The graph in Figure 2 represents the motion of a cyclist on a journey.
Using the graph, calculate the distance travelled by the cyclist and the average speed for the journey.
Equations of motion (vuast)
2004 Question 6 [Ordinary Level] (i) Define velocity. (ii) Define acceleration. (iii) Describe an experiment to measure the velocity of a moving object. (iv) A cheetah can go from rest up to a velocity of 28 m s−1 in just 4 seconds and stay running at this velocity for a further 10 seconds.
Sketch a velocity−time graph to show the variation of velocity with time for the cheetah during these 14 seconds. (v) Calculate the acceleration of the cheetah during the first 4 seconds. (vi) Calculate the resultant force acting on the cheetah while it is accelerating.
The mass of the cheetah is 150 kg. (vii) Name two forces acting on the cheetah while it is running.
2008 Question 12 (a) [Ordinary Level] (i) Define velocity. (ii) Define acceleration. (iii) A speedboat starts from rest and reaches a velocity of 20 m s−1 in 10 seconds.
It continues at this velocity for a further 5 seconds.
The speedboat then comes to a stop in the next 4 seconds.
Draw a velocity-time graph to show the variation of velocity of the boat during its journey. (iv) Use your graph to estimate the velocity of the speedboat after 6 seconds. (v) Calculate the acceleration of the boat
Remember to photocopy 4 pages onto 1 sheet by going A3→A4 and using back to back on the photocopier
2012 - 2002
Solutions to ordinary level questions begin on page 11
Solutions to higher level questions begin on page 19
Velocity
2010 Question 12 (a) [Higher Level] (i) A student holds a motion sensor attached to a data-logger and its calculator.
List the instructions you should give the student so that the calculator will display the graph shown in Fig 1.
(ii) The graph in Figure 2 represents the motion of a cyclist on a journey.
Using the graph, calculate the distance travelled by the cyclist and the average speed for the journey.
Equations of motion (vuast)
2004 Question 6 [Ordinary Level] (i) Define velocity. (ii) Define acceleration. (iii) Describe an experiment to measure the velocity of a moving object. (iv) A cheetah can go from rest up to a velocity of 28 m s−1 in just 4 seconds and stay running at this velocity for a further 10 seconds.
Sketch a velocity−time graph to show the variation of velocity with time for the cheetah during these 14 seconds. (v) Calculate the acceleration of the cheetah during the first 4 seconds. (vi) Calculate the resultant force acting on the cheetah while it is accelerating.
The mass of the cheetah is 150 kg. (vii) Name two forces acting on the cheetah while it is running.
2008 Question 12 (a) [Ordinary Level] (i) Define velocity. (ii) Define acceleration. (iii) A speedboat starts from rest and reaches a velocity of 20 m s−1 in 10 seconds.
It continues at this velocity for a further 5 seconds.
The speedboat then comes to a stop in the next 4 seconds.
Draw a velocity-time graph to show the variation of velocity of the boat during its journey. (iv) Use your graph to estimate the velocity of the speedboat after 6 seconds. (v) Calculate the acceleration of the boat