PLANNING EXPERIMENT (SECTION B) SIMPLE PENDULUM INFERENCE Period depends on length of pendulum HYPHOTESIS Length increase, period increase AIM To investigate the relationship between period and length of pendulum VARIABLES MV : length of pendulum RV : period FV : angle of oscillation LIST OF Two pieces of plywood, thread, retort stand, meter rule, pendulum bob, APPARATUS stop watch ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. The bob is tied with a thread of length, l=10.0 cm. 3. The bob is pulled sideway with an angle 450 and released. 4. The time taken for 10 complete oscillations, t is measured using stop watch. t 5. Period of oscillation is calculated using the formula , T 10 10 6. The experiment is repeated using different length of pendulum which are 20.0 cm, 30.0 cm, 40.0 cm and 50.0 cm. TABULATE DATA Length, l (cm) Period, T (s) 10.0 20.0 30.0 40.0 50.0 ANALSYING DATA Period, T (s) Length, l (cm) Awesome physics is around you*alina iman arif_1 PLANNING EXPERIMENT (SECTION B) INERTIA INFERENCE Inertia depends on mass HYPHOTESIS mass increase, period increase AIM To investigate the relationship between period and mass VARIABLES MV : mass RV : period FV : length of hacksaw blade LIST OF G-clamp, jigsaw blade, plasticine, triple beam balance, stop watch APPARATUS ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. 20 g of plasticine is fixed at one end of a jigsaw blade. 3. Displace the blade horizontally and release so that it oscillates. 4. The time taken for 10 complete oscillations, t is measured using stop watch. 5. Period of oscillation is calculated using the formula , 6. The experiment is repeated using different mass of plasticine which are 40 g, 60 g, 80 g and 100 g. t TABULATE T 10 DATA Mass, m (g) Period, T (s) 10 20 40 60 80 100 ANALSYING DATA Period, T (s) Mass, m (g) Awesome physics is around you*alina iman arif_2 PLANNING EXPERIMENT (SECTION B) VELOCITY INFERENCE Velocity depends on height HYPHOTESIS Height increase, velocity increase AIM To investigate the relationship between height and velocity VARIABLES MV : height RV : velocity FV : length of runway LIST OF Trolley, friction-compensated runway, ticker-timer, ticker-tape, a.c. power APPARATUS supply, wood blocks, meter rule ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. The runway is raised up by wooden blocks to a height 20.0 cm. 3. Switch on the ticker-timer and released the trolley. 4. The final velocity, v is calculated from the ticker-tape when the trolley reach the end of the runway. 5. The experiment is repeated by rising the runway and placing the trolley at height 30.0 cm, 40.0 cm, 50.0 cm and 60.0 cm. TABULATE DATA Height, h (cm) Velocity, v (ms-1) 20 30 40 50 60 ANALSYING DATA Velocity, v (ms-1) Height, h (cm) Awesome physics is around you*alina iman arif_3 PLANNING EXPERIMENT (SECTION B) ACCELERATION (I) INFERENCE Acceleration depends on mass HYPHOTESIS mass increase, acceleration decrease AIM To investigate the relationship between mass and acceleration VARIABLES MV : mass // number of trolley RV : acceleration FV : force acting on the object LIST OF Trolley, friction-compensated runway, ticker-timer, ticker-tape, a.c. power APPARATUS supply, wood blocks, meter rule, elastic cord, weighing scale ARRANGEMEN T OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. Switch on the ticker-timer. Apply a force by stretching an elastic band to a fixed length and the length is maintain as the trolley runs down the runway. 3. Cut the ticker tape into strips containing 10 ticks each. 4. Acceleration of the trolley is calculated by using the formula, vu a t 5. The experiment is repeated by using 2 trolleys, 3 trolleys, 4 trolleys and 5 trolleys. TABULATE DATA Mass of trolley, m (g) or Accelerations, a (ms-2) No. of trolley 1 2 3 4 5 ANALSYING DATA Accelerations, a (ms-2) Mass of trolley, m (g) or No. of trolley Awesome physics is around you*alina iman arif_4 PLANNING EXPERIMENT (SECTION B) ACCELERATION (II) INFERENCE Force depends on acceleration HYPHOTESIS force increase, acceleration increase AIM To investigate the relationship between force and acceleration VARIABLES MV : force RV : acceleration FV : mass of the object LIST OF Trolley, friction-compensated runway, ticker-timer, ticker-tape, a.c. power APPARATUS supply, wood blocks, meter rule, elastic cord ARRANGEMEN T OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. Switch on the ticker-timer. Apply a force by stretching an elastic band to a fixed length and the length is maintain as the trolley runs down the runway. 3. Cut the ticker tape into strips containing 10 ticks each. 4. Acceleration of the trolley is calculated by using the formula, vu a t 5. The experiment is repeated by using 2 cords, 3 cords, 4 cords and 5 cords. TABULATE DATA Force, F (N) Accelerations, a (ms-2) 1 2 3 4 5 ANALSYING DATA Accelerations, a (ms-2) Force, F (N) Awesome physics is around you*alina iman arif_5 PLANNING EXPERIMENT (SECTION B) HOOKE’S LAW (EXTENSION OF THE SPRING) INFERENCE Extension of the spring depends on force / weight HYPHOTESIS force / weight increase, extension of the spring increase AIM To investigate the relationship between extension of the spring and force / weight VARIABLES MV : force / weight RV : extension of the spring FV : spring constant / diameter of the spring LIST OF Spring, slotted weight, retort stand, meter rule, clamp APPARATUS ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. Measured the initial length of the spring, lo. 3. Slotted weight of 20 g is hung from the spring. The length of the spring, l is record. 4. The extension of the spring, x is calculated by using the formula, x l lo 5. The experiment is repeated by using slotted weight 40 g, 60 g, 80 g and 100 g. TABULATE DATA Mass of load Force, F (N) Extension of the spring, (g) x (cm) 20 40 60 80 100 ANALSYING DATA Extension of the spring, x (cm) Force, F (N) Awesome physics is around you*alina iman arif_6 PLANNING EXPERIMENT (SECTION B) SOLID PRESSURE (FORCE & PRESSURE) INFERENCE Pressure depends on surface area HYPHOTESIS The smaller the surface area the greater the pressure (depth of sinking) AIM To investigate the relationship between surface area and pressure (depth of sinking) VARIABLES MV : surface area RV : depth of sinking FV : Weight / force / mass LIST OF Plasticine, slotted weight , wooden rod and meter rule APPARATUS ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. Start the experiment with a wooden rod has surface area 1 cm2. 3. Placed the load of mass 200 g on the top of wooden rod as shown on diagram. 4. Measure the depth of sinking made on the plasticine by using meter rule. 5. Repeat the experiment 4 times with surface area of rod 2 cm2, 3 cm2, 4 cm2 and 5cm2. TABULATE DATA Surface area , A (cm2) Depth of depression, d (cm) 1 2 3 4 5 ANALSYING DATA Depth of depression, d (cm) Surface area, A (cm2) Awesome physics is around you*alina iman arif_7 PLANNING EXPERIMENT (SECTION B) LIQUID PRESSURE (DENSITY & PRESSURE) INFERENCE Pressure depends on density of liquid HYPHOTESIS density increase, different height in manometer increase AIM To investigate the relationship between density and different height in manometer VARIABLES MV : density of liquid RV : different height in manometer FV : depth of liquid LIST OF Meter rule, manometer, rubber tube, thistle funnel, measuring cylinder, APPARATUS thin rubber sheet, salt water, coloured solution, retort stand ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. The thistle funnel is lowered into the salt water with density 0.5 gcm-3 at a depth 20.0 cm. 3. Observed and measure the different level, h at manometer through meter rule. 4. The experiment is repeated by using different density of salt water which are 1.0 gcm-3, 1.5 gcm-3, 2.0 gcm-3 and 2.5 gcm-3. TABULATE DATA Density, ϸ Different (gcm-3) level, h (cm) 0.5 1.0 1.5 2.0 2.5 ANALSYING DATA Different level, h (cm) Density, ϸ (gcm-3) Awesome physics is around you*alina iman arif_8 PLANNING EXPERIMENT (SECTION B) LIQUID PRESSURE (DEPTH & PRESSURE) INFERENCE Pressure (different height in manometer) depends on depth of liquid HYPHOTESIS depth increase, pressure (different height in manometer) increase AIM To investigate the relationship between depth of liquid and pressure (different height in manometer) VARIABLES MV : depth of liquid RV : different height in manometer FV : density of liquid LIST OF Meter rule, manometer, rubber tube, thistle funnel, measuring cylinder, APPARATUS thin rubber sheet, salt water, coloured solution, retort stand ARRANGEMENT OF APPARATUS PROCEDURE 1. Set up the apparatus as shown on the diagram. 2. The thistle funnel is lowered into the salt water with density 0.5 gcm-3 at a depth 0.5 cm. 3. Observed and measure the different level, h at manometer through meter rule. 4. The experiment is repeated by lowered the thistle funnel at different depth which are 1.0 cm, 1.5 cm, 2.0 cm and 2.5 cm. TABULATE DATA Depth, y (cm) Different level, h (cm) 0.5 1.0 1.5 2.0 2.5 ANALSYING DATA Different level, h (cm) Depth, y (cm) Awesome physics is around you*alina iman arif_9 PLANNING EXPERIMENT (SECTION B) BUOYANT FORCE INFERENCE buoyant force depends on volume of water displaced HYPHOTESIS volume of water displaced increase, buoyant force increase AIM To investigate the relationship between volume of water displaced and buoyant force VARIABLES MV : volume of water displaced (height of rod immersed) RV : buoyant force FV : density of liquid, cross-sectional area of rod LIST OF Meter rule, retort stand, spring balance, aluminium rod, beaker, water, APPARATUS string ARRANGEMENT OF APPARATUS PROCEDURE 1.