Grd 9 Physics Practice Quiz

What is the anticlockwise moment acting on this crane?

• 80,000Nm
• 100,000Nm
• 120,000Nm
• 140,000Nm

What is the moment acting on the seesaw?

• 1.6Nm
• 15Nm
• 16N
• 4Nm

What is the moment produced by the 15 N?

• 15 Nm (clockwise)
• 150 Nm (anti - clockwise)
• 1.5 Nm (anti - clockwise)
• 0.15 Nm (clockwise)

The easiest way to open a heavy door  is by applying the force

• Near the hinges
• In the middle of the door
• At the edge of the door far from the hinges
• At the top of the door

A nut can be loosened more easily with

• a short spanner because a larger turning effect can be produced.

• a long spanner because a larger turning effect can be produced.

• a long spanner because a larger force can be produced.

• a short spanner because a larger force can be produced.

What is the unit of moment f force?

• N

• m

• Nm

• N/m

What is the correct equation for calculating a perpendicular distance? 

• perpendicular distance = force x moment 
• perpendicular distance = force / moment 
• perpendicular distance = moment / force

What can force do to an object?

• Accelerate an object

• Slow down an object

• Have the object remain in place

• Have the object change shape

• All of the above

What type of force was at work in the parachute?

• elastic spring force

• frictional force (air resistance)

• magnetic force

• gravitational force

_______________ is when energy is transferred due to charge flowing around a circuit. 

• Electrically

• Kinetic

• Mechanically

• By radiation