Testing 1

A mother weighs 100 Kg and her son weighs 50 Kg. If the son is sitting 6 meters from the pivot, how many meters from the pivot should the mother sit to balance the seesaw?

Two men are carrying a heavy box on a plank. Which man is carrying more of the load?

You put the same amount of weight at the end of these two pendulums. If you let go of the two pendulums at the same time, which will swing faster?

If the shopping trolley was moving in the direction of the big arrow and then you stopped it suddenly, which way would the bottle fall?

In what direction will gear 3 turn?

How much force (in kg) do we need to use to lift the 120 kg weight?

If a car and a bowling ball went off a 100-metre cliff at the same time, which would hit the ground first?

In which direction will the gear at the right turn?

If gear A turns 5 times, how many times will gear B turn?

In which direction will the arm swing when the handle is moved as shown?13kg

Approximately how much force is needed to lift the weight?

Which tool or combination of tools would be most useful for general woodwork?

13. Which tool or combination of tools would be most useful to repair broken radio

In the circuit shown, how many switches need to be closed to light up one bulb?

Which is most suitable tool for breaking up concrete?

Which is most suitable tool for assembling a friction fit wooden frame?

If drive wheel X rotates clockwise at a speed of 10rpm. How does wheel Y turn?

How many bulbs will light up when the switch is closed

Approximately how much force is needed to lift the weight?

If gear X turns clockwise at a constant 10rpm. How does gear Y turns?

If drive wheel X rotates clockwise at a speed of 10rpm. How does wheel Y turns?

If the vehicle's brakes fail simultaneously, which vehicle will hit the brick wall with greater force?

Two trucks of equal length carry equal weight loads. The load on Truck A is three feet higher than the load on Truck B. Which truck will require a greater turning radius to ensure it does not tip over during the turn?

24. The diagram shows two fixed cogwheels which can only rotate around their own axis. A rack is inserted between the two cogwheels and is moved in the direction shown by the arrow. What are the directions of movement and velocities of the cogwheels?

25. A system of cogwheels is shown in the diagram below: An external force turns the cogwheel on the extreme left in the given direction (counter clockwise). Which cogwheel will turn faster, the first one (I) or the second one (II)?