State in each case, whether the motion is one, two or three dimensional. A speeding bus on a straight highway Moon revolving around the earth.

State in each case, whether the motion is one, two or three dimensional. An ant crawling on globe

State in each case, whether the motion is one, two or three dimensional. A piece of paper flying in the sky.

Define motion in one, two and three dimensions giving one example of each.

State the converses of the following statement. In each case, also decide whether the converse is true or false.:- If two triangles are congruent, then their corresponding angles are equal.

State the converses of the following statement. In each case, also decide whether the converse is true or false.:- If a transversal intersects two parallel lines, then each pair of corresponding angles is equal.

Two long straight, current-carrying conductors , PQ and XY, are held a constant distance apart as shown in the figure. The conductors carry the magnitude of current in the same direction . A plan view form above the conductors is shown in the figure. Draw arrows, one in each case, to show the direction of the magnetic field at Q due to the current in wire XY. the force at Q as a result of the magnetic field due to the current in wire XY.

Form the pair of linear equations in the following problems and find their solutions (if they exist) by any algebraic method :- Points A and B are 70 km apart on a highway. A carstarts from A and another car starts from B simultaneously. If they travel in the same direction, they meet in 7 hours, but if they travel towards each other, they meet in one hour. Find the speed of two cars.

Find the component Statements of the following and check whether they are true or not : The earth revolves around the sun or the moon.

Read each statement below carefully and state with reasons and examples, if it is true or false :- A particle In one-dimensional motion:- with zero speed at an instant may have non-zero acceleration at that instant