2. QUESTION 1
The figure shows a tool used to crack a nut.
This tool is a second class lever because
B. The load is in the
A. There is no load
middle
C. The effort is in the D. The fulcrum is in
middle the middle
3. QUESTION 2
Which pair of devices does not use the
principle of lever ?
B. Fishing rods and
A. Screw and ladder
pliers
C. Nutcracker and D. Wheel-barrow
paper cutter and bottle opener
4. QUESTION 3
Diagram 3 shows the process of pruning leaves . The
tool used can be classified as a first class lever
because
A. The load is between B. The fulcrum is between
the fulcrum and the force the load and the force
C. The force is between D. The load is the same
the load and the fulcrum position as the fulcrum
5. QUESTION 4
Diagram 4 shows a vegetable seller carrying two baskets, F
and G. F has a mass of 40 kg and G has a mass of 60 kg. The
distance between G and the seller is 1 .0 m. What should be
the distance between the seller and F in order to balance both
the baskets?
A. 0.5 m
B. 1.0 m
C. 1.5 m
D. 2.5 m
6. QUESTION 5
Diagram 5 shows a nail being pulled out using tools,
P and Q. Which of the following statements is correct
about the effort that was used?
A. P needs less effort than Q to pull
out the nail
B. Q needs less effort than P to pull
out the nail
C. The distance of the nail from the fulcrum
does not influence the effort used
D. If the distance of effort is nearer to the
fulcrum, the effort used will decreased
