Newton's Laws

What is the effect of gravity on objects?

• Gravity pushes objects away from the Earth, making them weightless.

• Gravity pulls objects toward the center of the Earth, giving them weight.

• Gravity has no effect on objects, they float freely in space.

• Gravity only affects large objects like planets and stars.

What is friction?

• Friction is the force that opposes the motion of an object when it is in contact with another surface.

• Friction is the force that accelerates an object in motion.

• Friction is the force that increases the speed of an object when it is sliding.

• Friction is the force that allows objects to float on water.

What is net force?

• The total force acting on an object, considering all individual forces and their directions.

• The force that is applied to an object to make it move.

• The force that opposes the motion of an object.

• The force that is exerted by gravity on an object.

What is an unbalanced force?

• A force that does not change the motion of an object.

• A force that results in a change in the motion of an object, causing it to accelerate.

• A force that is equal in magnitude and opposite in direction to another force.

• A force that acts on an object at rest, keeping it stationary.

What is Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• An object will remain in motion unless acted upon by a balanced force.

• An object at rest will eventually move unless acted upon by a force.

• An object in motion will eventually come to rest unless acted upon by an external force.

What is inertia?

• The force that causes an object to move in a circular path.

• The tendency of an object to resist changes in its state of motion.

• The speed at which an object travels in a straight line.

• The gravitational pull exerted by an object on another object.

What does it mean for forces to be balanced?

• Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

• Balanced forces are unequal in size but act in the same direction, causing acceleration.

• Balanced forces are equal in size and direction, resulting in a constant speed.

• Balanced forces are forces that do not act on an object, leading to no motion.

What is tension force?

• A force that pushes objects apart.

• A pulling force transmitted through a string, rope, or cable when it is pulled tight.

• A force that acts on an object in motion.

• A force that resists the motion of an object.

What is the formula for calculating weight?

• Weight (W) = mass (m) × gravitational acceleration (g)

• Weight (W) = mass (m) + gravitational acceleration (g)

• Weight (W) = mass (m) ÷ gravitational acceleration (g)

• Weight (W) = mass (m) - gravitational acceleration (g)

What is the definition of mass?

• Mass is the amount of matter in an object, typically measured in kilograms.

• Mass is the weight of an object in a gravitational field.

• Mass is the volume of an object divided by its density.

• Mass is the energy contained in an object.