A student places a transparent semicircular block on a sheet of paper and draws
around the block. She directs a ray of light at the centre of the flat edge of the block.
Figure 1 shows the path of the ray through the block.
Figure 1
incident ray
centre of the flat
edge of the block
transparent
semicircular block
emergent ray \ sheet of paper
[foya}(4] State why the emergent ray does not change direction as it leaves the block.
[1 mark]
Answers: 1
Physics, 22.06.2019 02:10
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 07:00
What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next
Answers: 1
Physics, 22.06.2019 07:00
The cerebellum controls? thirst sensations sleep-wake cycles hand-eye coordination heart rate and pulse
Answers: 1
Physics, 22.06.2019 09:00
Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than
Answers: 3
A student places a transparent semicircular block on a sheet of paper and draws
around the block....
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
English, 18.09.2020 09:01
Spanish, 18.09.2020 09:01
Physics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Biology, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
English, 18.09.2020 09:01
Geography, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Social Studies, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01
Mathematics, 18.09.2020 09:01