Force and Motion

What is gravity?

• A force that repels objects away from each other.

• A force of attraction between two objects due to their masses.

• A type of energy that can be harnessed for power.

• A phenomenon that only occurs on Earth.

What is friction?

• A force that promotes motion between two surfaces in contact.

• A force that opposes motion between two surfaces that are in contact with each other.

• A type of energy generated by moving objects.

• A measure of the speed of an object in motion.

What is the relationship between force and motion?

• Force is a type of energy that does not affect motion.

• Force is any interaction that, when unopposed, will change the motion of an object.

• Force is only relevant when an object is at rest.

• Force is the result of an object's mass and velocity.

What is speed?

• Speed is the rate at which an object moves, measured in kilometers per hour (km/h).

• Speed is the distance traveled per unit of time, typically measured in miles per hour (mph) or meters per second (m/s).

• Speed is the total distance covered in a journey, regardless of time.

• Speed is the acceleration of an object, measured in meters per second squared (m/s²).

How does the mass of an object affect its gravitational force?

• The greater the mass of an object, the weaker the gravitational force it exerts.

• The mass of an object has no effect on its gravitational force.

• The greater the mass of an object, the stronger the gravitational force it exerts.

• Larger objects have weaker gravitational forces than smaller objects.

What is net force?

• The total weight of an object.

• The combination of all forces acting on an object.

• The force applied by gravity only.

• The force that opposes motion.

What is the effect of unbalanced forces on an object?

• Unbalanced forces cause an object to remain at rest.

• Unbalanced forces cause an object to accelerate, changing its speed or direction.

• Unbalanced forces have no effect on an object's motion.

• Unbalanced forces cause an object to move in a circular path.

What is the role of air resistance in motion?

• Air resistance is a type of friction that acts against the motion of an object moving through the air, slowing it down.

• Air resistance helps to speed up the motion of an object moving through the air.

• Air resistance has no effect on the motion of an object in the air.

• Air resistance only affects objects that are falling from a height.

What is the effect of balanced forces on an object?

• Balanced forces cause an object to accelerate in the direction of the net force.

• Balanced forces do not change the motion of an object.

• Balanced forces make an object come to a stop immediately.

• Balanced forces increase the speed of an object over time.

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 vacuum.

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