Physics > AS Level Question Paper > OCR AS LEVEL 2022 PHYSICS A QUESTION PAPER -H156-02 PAPER 2-H156/02 Depth in physics (All)

# OCR AS LEVEL 2022 PHYSICS A QUESTION PAPER -H156-02 PAPER 2-H156/02 Depth in physics

### Document Content and Description Below

Answer all the questions. 1 A student investigates the motion of a steel ball in oil in a laboratory. The radius r of the ball is 8.1mm. (a) Describe how the student can determine r accurately in t... he laboratory. ................................................................................................................................................... ................................................................................................................................................... ................................................................................................................................................... .............................................................................................................................................. [3] (b) The student uses a measuring cylinder and a digital balance to determine the density of the oil. The student records the following measurements: • mass of empty measuring cylinder = 96g • volume of oil added to measuring cylinder = 87cm3 • total mass of measuring cylinder and oil = 169g Show that the density of the oil is about 840kgm–3. [2] (c) The steel ball is submerged in the oil. Show that the upthrust acting on the steel ball is 1.8 × 10–2N. [2] 4 © OCR 2022 (d) The student fills a long tube with the oil. The student drops the steel ball from rest at the surface of the oil at time t = 0. The displacement s of the ball is measured from the surface of the oil. The graph shows the displacement s against time t for the steel ball from the instant it enters the oil. 0 0.2 0.4 0.6 0.8 1.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 s /m t/ s (i) The terminal velocity v of the steel ball is 1.8ms–1. Describe and explain how this can be determined from the graph. ........................................................................................................................................... ........................................................................................................................................... ........................................................................................................................................... ...................................................................................................................................... [3] 5 © OCR 2022 Turn over (ii) Use the graph to calculate the velocity u of the steel ball at time t = 0.20s. u = ................................................ ms–1 [2] (e) The mass of the steel ball is 17g. The drag F acting on the steel ball falling through the oil is given by the equation F = 6πηrv where η is a constant for the oil, r is the radius of the steel ball and v is the speed of the steel ball through the oil. At v = 1.8ms–1, the force F is equal to the difference between the weight of the steel ball and the upthrust acting on the steel ball. Calculate η. Include an appropriate unit. [Show More]

Last updated: 7 months ago

Preview 1 out of 20 pages

OR

OR

## Reviews( 0 )

### \$12.50

Can't find what you want? Try our AI powered Search

OR

40
0

### Document information

Connected school, study & course

Sep 11, 2023

Number of pages

20

Written in

#### Seller

##### QUIZ PRO

Member since 1 year

16 Documents Sold

This document has been written for:

Sep 11, 2023

0

Views

40

## THE BEST STUDY GUIDES

Avoid resits and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students

#### Avoid examination resits

Your fellow students know the appropriate material to use to deliver high quality content. With this great service and assistance from fellow students, you can become well prepared and avoid having to resits exams.

Your fellow student knows the best materials to research on and use. This guarantee you the best grades in your examination. Your fellow students use high quality materials, textbooks and notes to ensure high quality

#### Earn from your notes

Get paid by selling your notes and study materials to other students. Earn alot of cash and help other students in study by providing them with appropriate and high quality study materials.

\$12.50

## WHAT STUDENTS SAY ABOUT US

##### What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

##### We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
FAQ