Free Exam: Session2_25HKISOHR_Physics_Secondary1
Number of Questions in Test: 25
Number of Questions in Preview: 5
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[size=4]The SI standard of length is based on:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 2
[size=4]During a short interval of time the speed (v) in m/s of an automobile is given by v = at[sup]2[/sup] + bt[sup]3[/sup], where the time t is in seconds. The units of a and b are respectively:[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 3
[size=4]In SI units a force is numerically equal to the , when the force is applied to it.[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 4
In the equation y = mt + b, where 𝑦 has the dimension of length [L] and t has the dimension of time [T], what are the dimensions and SI units of m and b?
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |
Question 5
[size=4]When a person applies face powder, it removes the shiny appearance of their nose. Using the law of reflection, what optical effect explains how the powder takes away the shine?[/size]
| Type: | Multiple choice |
| Points: | 1 |
| Randomize answers: | No |