A spring is stretched 10 mm (0.01 m) by a weight of 2.0 N. Calculate the weight of an object that causes an extension of 80 mm (0.08 m).
10 N
15 N
16 N
18 N
Newton is the unit of:
Volume
Density
Force
Mass
A spring is stretched 10 mm (0.01 m) by a weight of 2.0 N. Calculate the weight w of an object that causes an extension of 40 mm( 0.04 m).
8 N
4 N
2 N
6 N
Extension is proportional to stretching force or load according to
Hooke's Law.
Newton's Law.
Charle's Law.
None of these.
Which of the following is the force generated by the gravitational attraction of the earth?
Gravity.
Friction.
Weight.
Magnetism .
Which of the following of a spring is the force needed to cause unit extension, 1m?
Force.
Force constant.
Mass.
What is the usual way of writing Hooke's law in symbols?
F = K / x
F= x / k
F = k x
Which of the following is a force which can act through space ?
Volume.
Density.
The weight of a body is the force of mass on it.
The weight of a body is the force of gravity on it.
The weight of a body is the force of volume on it.
The weight of a body is the force of density on it.
A woman on the surface of the Earth has a mass of 50 kilogram and a weight of 490 newtons. If the woman is floating freely inside a space habitat far away from Earth, she would have
Less weight and more mass.
Less weight and the same mass.
Less weight and less mass.
More weight and less mass.