Dynamics I Check

Which is an example of a non-contact force?

• Magnetic Force

• Friction

• Normal Force

• Tension

What is the definition of gravitational field?

• It is defined as the gravitational force per unit mass placed at that point.

• It is the gravitational force acting on an object

• It is the measure of the amount of matter in a body

• It is a region in which a mass experiences a force due to gravitational attraction.

Weight is the ________________ force acting on an object that has mass.

Which of these options is NOT a property of mass?

• Measured with an electronic balance.

• Its SI unit is kilogram

• It is a vector quantity

• It is defined as the amount of matter in a body.

Taking the gravitational field strength of Earth to be 10 N/kg, calculate the weight of a man that has a mass of 62.7 kg.

• 6270 N
• 62.7 N
• 627 N
• 6.27 N

Given that g_Earth = 10 N/kg and g_Moon = 1.6 N/kg, calculate the weight of a cat in the moon if it has a weight of 43 N on Earth

• 4.3 N
• 43 N

• 15 N
• 6.9 N

Which of these options is not an effect of a force?

• A force can change the direction of an object.

• A force can change the motion of an object.

• A force can change the shape of an object.

• A force can change the temperature of an object.

Which of the following is an example of a contact force?

• Electrostatic Force

• Friction

• Gravitational Force

• Magnetic Force

What is the unit of force in the International System of Units (SI)?

• Metre

• Newton

• Kilogram

• Pascal

What is the formula for calculating weight?

• Weight = Mass × Acceleration due to gravity

• Weight = Mass + Acceleration due to gravity

• Weight = Mass - Acceleration due to gravity

• Weight = Mass / Acceleration due to gravity