E M B I B E

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 16

EASY

Diploma

IMPORTANT

Earn 100

A sport car accelerates from rest to 100km per hour in 4.0s. What fraction of the acceleration due to gravity is the car's acceleration?

50% studentsanswered this correctly

Important Questions on Measurement and Uncertainties

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 17

Give an order-of-magnitude estimate for the number of electrons in your body.

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 18

Give an order-of-magnitude estimate for the ratio of the electric force between two electrons 1m apart to the gravitational force between the electrons.

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 19

The frequency

f

of the oscillation of the mass

m

attached to a spring constant

k

is related to

m

and

k

. by writing

f = a m^{x} k^{y}

and matching units both sides, show that

f = c \sqrt{\frac{k}{m}}

, where

c

is dimensionless constant.

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 20

A block of mass 1.2kg is raised at a vertical distance of 5.55m in 2.450s. Calculate the power delivered. (in W)

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 21

Find the kinetic energy of a block of mass 5.00 kg moving at a speed of 12.5 m/s. (in J)

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 22

Without using a calculator, estimate the value of the following expression. Then compare your estimate value found using a calculator.

$\frac{243}{43}$

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 22

Without using a calculator, estimate the value of the following expression. Then compare your estimate value found using a calculator.

$2.80 \times 1.90$

EASY

Diploma

IMPORTANT

Physics for the IB Diploma 6th Edition>Chapter 1 - Measurement and Uncertainties>Test yourself>Q 22

Without using a calculator, estimate the value of the following expression. Then compare your estimate value found using a calculator.

$312 \times \frac{480}{160}$

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