Maths Group11

I _________ in Sudan yesterday. I came back this morning.

My mother ______________ to market every Friday to buy fruits and vegetables.

500 dollars ____________ not enough for us.

If I _________ him, I would study hard.

My sister told me that she____ the following day.

The simplified form of log(100)-log10+log1000 is:

What is the value of antilog(-2)?

Which of the following lines are parallel to each other?

The exact value of sin (-330°) is:

Which one of the following is NOT true about pulley systems?

A 200N force is required to be applied at one end of 1m long lever. If the distance from the effort to fulcrum is 80cm, inorder to lift a load of 600N placed at the other end. What is the efficiency of the lever?

If the efficiency of one machine is 100%, then which one of the following is not true?

Which one of the following statement is true about simple machines?

Which one of the following statement is true about the classes of lever in simple machines?

If an inclined plane of 4m length and 1m height has an efficiency of 0.5, what is its mechanical advantage?

A screw shaft has a diameter of 4cm and its adjacent threads are 0.314cm apart. What is the velocity ratio of the screw?

A 10cm long and 2cm wide metal wedge is used to split a wood. What is the velocity ratio of the wedge?

Which simple machine can not be used to increase force?

An effort is 200N is applied on to a wedge of 4cm thick and 12cm long to split a log of 500N into parts. Then what is the efficiency of the wedge?

A simple machine has an efficiency of 0.75 and velocity ratio 12. Then what is the load that can be moved if an effort of 100N is applied?