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WorksheetsWPM Quiz
Total questions: 25
Worksheet time: 26mins
When will an object move?
When forces are unbalanced
When forces are balanced
When forces are applied
When no force is applied
What is the unit used to measure force?
Kilogram
Meter
Kilogram x meters/sec
Newton
What is the sum of all forces acting on an object called?
Contact Force
Balanced Force
Unbalanced Force
Net Force
What is the net force? (remember downward forces are negative)
-800 N
400 N
- 400 N
-800 N
What force brings the pencil down?
Suction
Magnetic
Normal
Gravity
Newton’s law states that for every action, there is an ________ reaction.
unequal and opposite
equal and similar
stronger and opposite
equal and opposite
When a heavy football player and a light one run into each other, who exerts more force
The light one
Their force are equal
The heavy one
A bat hits a ball with a 100 N force. How much force does the ball exert on the bat? Which direction does it act?
100 Newtons, same direction
100 Newtons, opposite direction
200 Newtons, opposite direction
200 Newtons, same direction
The momentum of an object depends upon the object's ___________&_____________.
size and shape
mass and volume
mass and veloctiy
mass and energy
The equation to calculate momentum is
p = m x v
p = 1/2 m x v2
p = m x g x h
p = m x g
Determine the momentum of 1000-kg car moving southward at 10 m/s.........
10000 Joules
20000 Joules
20000 kg * m/s south
10000 kg * m/s south
What is the unit for momentum?
m/s
kg/s
kg/m
kg x m/s
What is the unit for velocity?
m/s
kg/s
kg/m
kg x m/s
What is the unit for mass?
m/s
kg/sec
kg
kg x m/s
A boy kicks a football with a force of 40 N, the time the force acts for is 0.3 s. Calculate the impulse on the ball.
12 N⋅s
6 N⋅s
33.3 N⋅s
What units do we use to measure work?
watts
newtons
Joules
meters
A kid throws a ball with a force of 70N over 1.1 meters. How much work did he do?
77 joules
70 joules
7.7 joules
11 joules
What is the equation for calculating Power?
distance / time
Work x time
Work / time
force x distance
A lever used to lift a heavy box has an input arm of 90 meters and an output arm of 10 meters. What is the mechanical advantage of the lever?
9
900
80
100
What is input force?
the force applied on the input side by a person
the distance of the input arm
the force applied on the output side by the machine
the distance of the output arm divided by the input arm
What is output distance?
the force required by a machine in order to accomplish work (the force you put on the machine)
the force which an effort force must overcome in order to do work on an object via a simple machine.
the distance an input force moves a machine
the distance through which the output force is exerted
