Physics
Grade-7
Easy
Question
In 20 seconds, Bro A bench presses 145 pounds five times.
In 10 seconds, Bro B bench presses 145 pounds five times.
- Bro A did more work.
- Bro B did more work.
- Both Bros did the same amount of work.
- Incomplete information
Hint:
Both Bros did the same amount of work
The correct answer is: Both Bros did the same amount of work.
work done is not calculated on the basis of time, it depends on the force applied and the displacement that occurs.
Related Questions to study
Physics
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
PhysicsGrade-7
Physics
The amount of work done depends upon:
The amount of work done depends upon:
PhysicsGrade-7
Physics
A force exerted over a distance to move an object is called ________.
A force exerted over a distance to move an object is called ________.
PhysicsGrade-7
Physics
The gravitational force of any object near Earth's surface is_______.
The gravitational force of any object near Earth's surface is_______.
PhysicsGrade-7
Physics
What force was used to move a box 10 meters if 150 Joules of labor were required?
What force was used to move a box 10 meters if 150 Joules of labor were required?
PhysicsGrade-7
Physics
When 350 N is utilized to drive an automobile 5 meters, how much work is done?
When 350 N is utilized to drive an automobile 5 meters, how much work is done?
PhysicsGrade-7
Physics
The weight of a 5000N block is lifted 10 meters. What was the total amount of work done?
The weight of a 5000N block is lifted 10 meters. What was the total amount of work done?
PhysicsGrade-7
Physics
What amount of work would a group of workers have performed if they could apply a force of 1,000 Newtons to move a crate 20 meters?
What amount of work would a group of workers have performed if they could apply a force of 1,000 Newtons to move a crate 20 meters?
PhysicsGrade-7
Physics
What is the weight of a crate that requires 360 Joules of work to move a distance of 4 meters?
What is the weight of a crate that requires 360 Joules of work to move a distance of 4 meters?
PhysicsGrade-7
Physics
W = 125 J
d = 10 m
F = ???
W = 125 J
d = 10 m
F = ???
PhysicsGrade-7
Physics
F = 200 N
d = 50 m
W = ??
F = 200 N
d = 50 m
W = ??
PhysicsGrade-7
Physics
Which of the following shows the greatest work done?
Which of the following shows the greatest work done?
PhysicsGrade-7
Physics
When is positive work being done?
When is positive work being done?
PhysicsGrade-7
Physics
Which of the following is the best example of work being done?
Which of the following is the best example of work being done?
PhysicsGrade-7
Physics
Work done = Force x _________
Work done = Force x _________
PhysicsGrade-7