Apple
What is the SI unit of pressure?
Pa
What is the SI unit of density?
kg m-3
What is the SI unit of volume?
m3
What is the SI unit of torque?
Nm
What is the SI unit of force?
Newton
Name the formula for torque
torque = F x d
fixed point or axis around which an object rotates or turns called...
pivot point
Torque is considered a vector quantity or scalar quantity?
vector quantity has magnitude and direction.
turning effect that causes an object to rotate in the same direction as the hands of a clock around a pivot point is called...
clockwise
turning effect that causes an object to rotate in the opposite direction of the hands of a clock around a pivot point is called...
Counterclockwise torque
A pressure of 2000 Pa is applied on an area of 4 m². What is the force?
500 N
A force of 600 N acts on an area of 3 m². What is the pressure?
200 Pa
A pressure of 500 Pa acts on an area of 2 m². What is the force?
250 N
If a force of 1200 N is applied over an area of 6 m², what is the pressure?
200 Pa
A pressure of 3500 Pa acts on an area of 7 m². What is the force produced?
500 N
A water tank has a depth of 2 m. If the density of water is 1000 kg/m³ and g = 10 m/s², what is the pressure at the bottom?
20000 Pa
A diver is 5 m underwater. If water density is 1000 kg/m³ and g = 10 m/s², what is the pressure?
50000 Pa
Oil has a density of 800 kg/m³. At a depth of 3 m, what is the pressure if g = 10 m/s²?
24000 Pa
A point in a liquid has pressure 60,000 Pa. If density = 1000 kg/m³ and g = 10 m/s², what is the depth?
6 m
A container is filled with mercury (density = 13,600 kg/m³). At 0.5 m depth, what is the pressure if g = 10 m/s²?
68000 Pa
A seesaw has a 150 N child sitting 3 m from the pivot. What force is needed 2 m from the opposite side to balance it?
225 N
A 120 N child sits 2.5 m from a pivot on a seesaw. What force is needed 3 m on the opposite side to balance it?
100 N
A 200 N child is 1.5 m from the pivot. What force is needed 2 m on the other side to balance the seesaw?
150N
A 180 N child is 2 m from the pivot. What force is needed 1.5 m on the other side to balance the seesaw?
240N
A 90 N child sits 4 m from the pivot. What force is needed 3 m on the opposite side to balance it?
120N