where m1 is the mass hanging from the rule, m2 is the mass of the metre rule and g is the acceleration of free fall. This can be rearranged to give
m2 = m1 × (d1 / d2)
.
How do you know if a meter rule is horizontal?
If a metre rule is balanced horizontally at any point, this means that
the clockwise moments and the anticlockwise moments must be equal
. The arrangement for the experiment is shown in the diagram below.
What is the weight of meter rule?
The mass of a metre rule will vary considerably depending upon the material of manufacture. Commonly they tend to have a mass of
around 100 g
, but given the variation it is a good idea to know the mass before the students carry out the activity.
What is the meaning of metre rule?
A meter rule is
a device used to measure the length of objects
. A meter rule can measure up to 1mm.
What is the width of a meter rule?
2.1. 1 Metre Rules All metre rules shall be rectangular cross section and shall be of one of the following types ( see figure 1): Type 1 – A rule 1 m long,
25 mm wide and 5 mm thick
, with the 1⁄4 , 1⁄2 and 3⁄4 length indicated by lines across one face only.
What is the weight formula?
Weight is a measure of the force of gravity pulling down on an object. It depends on the object’s mass and the acceleration due to gravity, which is 9.8 m/s
2
on Earth. The formula for calculating weight is
F = m × 9.8 m/s
2
, where F is the object’s weight in Newtons (N) and m is the object’s mass in kilograms.
How do you find weight with moments?
The formula for calculating weight is
F = m × 9.8 m/s
2
, where F is the object’s weight in Newtons (N) and m is the object’s mass in kilograms.
What is the uses of metre?
A meter is a standard metric unit equal to about 3 feet 3 inches. This means that a meter is part of the metric system of measurement
What is the accuracy of a metre rule?
Meter rule is used to measure distance on paper. It is calibrated in millimeters, centimeters, . some meter rules are calibrated in inch or feet. The accuracy of meter rule is
0.1 cm or 1.0 mm
.
Is error a parallax?
Parallax error occurs
when the measurement of an object’s length is more or less than the true length
because of your eye being positioned at an angle to the measurement markings. … A wider edge allows for a larger parallax error because the object could be higher or lower with respect to the true measurement marking.
What is the smallest graduation on a meter rule?
If there are 10 the smallest graduation or mark is
1/10” or 0.1”
as a decimal. If there are 100 the smallest graduation or mark is 1/100′′ or 0.01′′ as a decimal, etc.
What is a vernier caliper used to measure?
Figure 3 shows a common use for a vernier called a vernier caliper. This caliper can measure
the outside diameter of an object (outside vernier)
, the inside diameter of a hole (inside caliper), or the depth of a hole (depth probe).
What is my weight for my age?
| Age (years) Lower percentile weight (lbs) Upper percentile weight (lbs) | 2–3 23–27 or less 32–7 lbs or higher | 3–4 27–30 or less 37–42 or higher | 4–5 30–34 or less 42–49 or higher | 5–6 34–37 or less 49–56 or higher |
|---|
How much is your true weight if the scale shows 100 kg?
Newtons. The correct unit for force is the Newton (=1 kg·m/s2) which is abbreviated N. So a 100 kg mass really weighs
about 980 Newtons
on Earth.
How do you calculate a moment?
- The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. …
- The magnitude of the moment of a force acting about a point or axis is directly proportinoal to the distance of the force from the point or axis. …
- Moment = Force x Distance or M = (F)(d)
