Snap-pick the torque numbers

Exercise and reference answers

Questions

1. Question

   Push a door with 40 N at 0.800 m from the hinges, straight on. Torque?

   Choices

   1. 32 N m
   2. 16 N m
   3. 50 N m

   Correct choice

   32 N m

2. Question

   Same door and distance, push cut to 20 N. Torque?

   Choices

   1. 32 N m
   2. 16 N m
   3. 8 N m

   Correct choice

   16 N m

3. Question

   A 26.0 kg child sits 1.60 m out. A 32.0 kg child balances at?

   Choices

   1. 1.97 m
   2. 0.80 m
   3. 1.30 m

   Correct choice

   1.30 m

4. Question

   Pivot force under a 26.0 kg and a 32.0 kg child on a light seesaw?

   Choices

   1. 568 N
   2. 58 N
   3. 284 N

   Correct choice

   568 N

5. Question

   A force pushes straight along a line through the pivot. Torque?

   Choices

   1. Half of r F
   2. Zero
   3. Largest possible

   Correct choice

   Zero

6. Question

   Wheelbarrow load arm 7.50 cm, hand arm 1.02 m. Mechanical advantage?

   Choices

   1. 0.074
   2. 7.65
   3. 13.6

   Correct choice

   13.6

Instructions

Tap the right answer before the timer runs out.

Explanation