Worksheetspribadi depok grade 11 ease
Total questions: 42
Worksheet time: 41mins
The quantity that tells us about the turning effect of a force is called?
Energy Force
Work Force
Moment Force
Strong Force
What is defined as a push or pull?
force
motion
vector
speed
The moment of a force causes an object to
move forward
move backward
stop moving
turn about a fixed point
The turning effect of a force on a door is greater when it is applied at
A point near the hinges and perpendicular to the door
A point near the hinges and parallel to the door
A point far away from the hinges and perpendicular to the door
A point far away from the hinges and parallel to the door
Two equal and oppositely directed forces acting on an object will be in equilibrium
Only if they act on the same point on the object
If they are separated by a distance
When they are balanced by a third force
when their moments about the same point are equal
The diagram shows a light beam pivoted at one end. What is the effort required to lift the load?
50
67
100
200
Jack has a weight of 300 N and sits 2.0 m from the pivot of see-saw. Jill has a weight of 450 N and sits 1.5 m from pivot. Who will move down?
Jack
Jill
Both of them
None of them
What is the force F needed to balance the bar shown?
3
4
6
8
A light metre rule is allowed to pivot freely at the zero end. The other end is supported by a spring balance. A weight of 200N is then hung at the 40cm mark. The metre rule stays horizontal. What is the reading on the spring balance?
80
40
8
4
A force of 120 N is applied perpendicularly on a spanner at a distance of 9 cm from a nut. The torque produced by the force will be
12 Nm
10.8 Nm
15 Nm
12.59 Nm
A boy of weight 600N sits on the see-saw as shown at a distance of 1.5m from the pivot. What is the force F required at the other end to balance the see-saw?
450 N
350 N
4.5 N
200 N
The figure shows a uniform metre rule pivoted at the 50cm mark. 125g and 200g weights hang from the rule as shown. Calculate where you would hang a 25g mass in order to balance the rule horizontally
20 cm from pivot on the side of 125 g mass
10 cm from pivot on the side of 125 g mass
40 cm from pivot on the side of 200 g mass
10 cm from pivot on the side of 200 g mass
What is the value of F?
A balance is being used to find the weight of a baby. The weight of the basket can be ignored. At equilibrium, the pivot is nearer to the 40 N balancing weight than to the baby.
What is the weight of the baby?
less than 40 N
40 N
more than 40 N
impossible to tell without a scale on the beam
A ball is dropped on to a hard surface and bounces. It does not bounce all the way back to where it started, and so has not regained all of its original gravitational potential energy.
Which statement accounts for the loss of gravitational potential energy?
Energy was destroyed as the ball hit the ground.
Energy was destroyed as the ball travelled through the air.
The chemical energy and elastic energy of the ball have increased.
The internal (heat) energy of the ball and its surroundings has increased.
