Q.1.
A box weighs 100 N. It exerts a pressure of 25 Pa on a table. What is the area of the box in contact with the table?
Q.2.
A box weighs 20 N. It exerts a pressure of 2 Pa on a table. What is the area of the box in contact with the table?
Q.3.
A skier weighs 600 N and exerts a pressure of 2,500 Pa on the snow. What is the area of the skis?
Q.4.
A skier weighs 600 N, lifts one ski up and exerts a pressure of 5,000 Pa on the snow. What is the area of one of the skis?
Q.5.
A student weighs 500 N, standing on two feet she exerts a pressure of 25,000 Pa on the ground. What is the area of one foot?
Q.6.
One box weighing 60 N is put on top of one weighing 120 N. The pressure they exert is 180 Pa. What is the area touching the ground?
Q.7.
A 60,000N elephant can stand on one foot! The pressure it exerts is 240,000 Pa. What is the area of its foot?
Q.8.
Camels have big feet so they don't sink into soft sand because .......
Q.9.
A sharp knife cuts well because .......
Q.10.
Doubling the force and doubling the pressure mean .......