1. Match the titles to the parts of the text:

1). A vector

2). Terms of Cartesian coordinates

3). The right-hand rule

4). A scalar

5). Mathematical operations and vectors.

A	B	C	D	E

2.Match the notions to their definitions:

1). Kinematics	a) denotes the physical quantities that have no idea of direction associated with them.
2). Vectors	A b) unit for measuring the amount of work performed per second.
3). Scalar	c) A branch of the science of mechanics that deals with aspects of motion apart from considerations of mass and force.
4). Horse-power	d) directional quantities.

1	2	3	4

3.What statements are true or false:

1). Joule An international metric measure of mass.

2). Kilowatt: A hundred watts.

3). The equations of mechanics are typically writ­ten in terms of Cartesian coordinates.

4). Two observers describe the situation with different equa­tions.

5). A vector is a quantity that has both magnitude and direc­tion.

6). By contrast to a vector, an ordinary quantity having mag­nitude and direction is known as a scalar.

1	2	3	4	5	6

4. Choose the right statement:

1). Watt An international metric measure of … equal to one joule per second.

a) power;

b) electric current;

c) weight.

2). Vector is typically represented symbolically by … in the proper direction, whose length is proportional to the magnitude of the vector.

a) a star;

b) an arrow;

c) a line.

3). Mathematical operations: addition, subtraction, three kinds of multiplication, and differentiation can be performed with … .

a) calculators;

b) a sliding ruler;

c) vectors.

5. Fill in the gaps.

Both observers see the same particle executing the same motion and (1) the same laws, but they describe the situation with (2). This awkward situation may be avoided by means of a mathematical construction called a (3). A vector is a quantity that has both magnitude and direc­tion

1) a)obeying, b)is obeying, c)will be obeying;

2) a)different escalators,b)another scalars, c) different equa­tions;

3) a)vector, b) scalar, c)equation.

6. Complete the sentences.

Some physical 1)____ have no idea of direction associated with them. One can represent these vector quantities graphically by means of 2)____. The length of the arrow is a measure of the 3)____ of the vector, the direction of the arrow indicate its 4)____. Suppose we walk two kilometres along a

5)___ road.Thus, the ordinary rules of arithmetic are not 6) ____ to vectors. Two separate forces of 3 and 4 kg act on it at right angles.In any case, to find the 7)____ force graphically it is necessary to complete the parallelogram and 8)____ the length of the diagonal. For a body to be in equilibrium, there must be no net 9)____ acting on it. The body's own tendency is to restore the deformation has the effect of applying 10)____ , thus 11)____ Newton's

third law. Calling a body 12)____ means that the changes in the 13)____ of the body are small enough to be neglected, even though the force produced by the deformation may not be 14)____ A suspension bridge illustrates the use of 15) ____. The weight of the span and any traffic on it is 16)____ by cables.

e)rigid, d)dimensions,c) neglect, b)tension, a)support, j)resultant, i)measure, h)torque, g)counterforces, f)obeying, o)quantities, n)arrow, m)magnitude, l)direction, k)straight, p)applicable.