Turning Effect of Force Examples Quiz

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What is the fourth state of matter?

Liquid

Gas

Solid

Plasma (correct)

Which physical quantity is defined as the product of an object's mass and velocity?

Momentum (correct)

Energy

Force

Acceleration

What is the efficiency of a machine that requires 500 J of input energy but can only deliver 400 J of useful output energy?

75%

80% (correct)

60%

85%

Which property of matter describes its resistance to flow?

Viscosity Signup and view all the answers

Which equation represents the relationship between work, force, and distance in physics?

$W = F*d$ Signup and view all the answers

In the context of gravitation, what happens to the gravitational force between two masses if their separation distance is doubled?

It decreases to one-fourth Signup and view all the answers

What is the momentum of the bus when a net force of 1000 N is applied for 10 seconds?

10000 kg m/s Signup and view all the answers

Why do machines cannot give 100% efficiency in their surroundings?

Frictional forces consume some of the energy provided Signup and view all the answers

Which of the following is NOT considered a property of matter?

Speed Signup and view all the answers

Which of the following is true about plasma, the fourth state of matter?

It consists of ionized particles Signup and view all the answers

In the context of physics, what is the term used to describe the gravitational force acting on an object?

Weight Signup and view all the answers

What is the SI unit of momentum?

kg m/s Signup and view all the answers

Which of the following statements about the efficiency of machines is true?

Efficiency decreases with increasing output work. Signup and view all the answers

Which physical quantity describes the amount of matter in an object?

Mass Signup and view all the answers

Which physical quantity is defined as the rate of change of displacement?

Velocity Signup and view all the answers

What property of matter describes its resistance to change in shape or volume?

Rigidity Signup and view all the answers

What is the main form of energy transfer that occurs when you touch a hot object?

Conduction Signup and view all the answers

Which of the following properties is NOT typically associated with plasma as the fourth state of matter?

Definite shape and volume Signup and view all the answers