Newtons Laws

Front

What is the gravitational force exerted on an object called?

Back

weight

Front

Why do astronauts seem weightless when in orbit? Options: Earth's gravity is much less in orbit, The gravity of Earth and Sun cancel each other out, The spacecraft is in freefall, The centripetal force on the spacecraft balances Earth's gravity.

Back

The spacecraft is in freefall.

Front

What describes the forces on an object with a net force of zero? Options: inertia, acceleration, balanced forces, unbalanced forces.

Back

balanced forces

Front

Which body exerts the most gravitational force on you?

• The moon
• Earth
• The Sun
• none of these is correct

Back

Earth

Front

A person is pushed forward into their seat belt when a car stops. Which law is this? Options: 1st, 2nd, 2 and 3, 3rd

Back

1st

Front

Which of the following formulas are incorrect? Options: F=MxA, M= F/A, A= F/M, M= A/F

Back

M= A/F

Front

Formula for calculating the force applied to an object according to Newton's Second Law of Motion.

Back

Front

Which of Newton's Laws explains the principle of action and reaction?

Back

Third Law

Front

Which of Newton's Laws states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force?

Back

First Law

Front

Objects with greater _________ also have greater inertia.

Back

mass