WorksheetsHonor's WPE Test Review
Total questions: 20
Worksheet time: 11mins
Which does not illustrate kinetic energy?
It is expressed in Joule.
It depends upon the objects’ mass and speed.
It is the energy an object possesses due to its motion.
It depends upon the objects’ mass and objects’ height.
A roller coaster whose average speed throughout the ride is 32 m/s is at the top of a 72m hill and weighs 966N. If the coaster is moving close to 0 m/s at the top of the hill, the coaster car has ___________________ energy.
only kinetic energy
only potential energy
mostly kinetic energy
both kinetic and potential energy
What is the potential energy of a 3kg ball that is on the ground?
0 J
3 J
9.8 J
29.4 J
A 100 N force is applied to move an object a horizontal distance of 5 meters at constant speed in 10 seconds. How much power is done?
50J
50W
500J
500W
A weightlifter holds a 100 kg barbell above her head. Is work being done?
Yes because there is a force applied to the barbell and the force causes a displacement of the barbell.
Yes because there is an upward force applied to the barbell and the barbell moves vertically.
No because no displacement is occurring.
No because there is no force applied.
What is the energy possessed by the cart?
potential energy
kinetic energy
mostly potential
mostly kinetic
If the mass of the cart is 15kg, how much is the potential energy of the cart?
0J
1.2J
6J
58.8J
How will you describe the energy from Point A to Point B?
mostly potential energy
mostly kinetic energy
losing PE, gaining KE
losing KE, gaining PE
What is the total mechanical energy of the object?
100J
75J
50J
25J
A mason raises a 200 N bag of cement from the floor to over his head (2.0 meters) in 4 seconds. What is his average power input?
100 W
200 W
50 W
10 W
A 60 Kg hiker climbs a hill 100 meters high. How much work does he do?
6,000 J
How far will 350 J of work raise a 70 N can of paint?
The units of measurement for work are?
Newton
Newton*meter
Joule
Watt
Joule per second
A kilojoule is how many joules?
1
100
10,000
100,000
1,000
A megajoule is how many joules?
1
100,000
1,000
1,000,000
100
The kinetic energy of an object increases by what factor if the velocity is doubled?
a factor of one half
a factor of double
a factor of triple
a factor of quadruple
The kinetic energy of an object increases by what factor if the mass is doubled?
a factor of one half
a factor of double
a factor of triple
a factor of quadruple
