Force and Motion

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion. Objects with greater mass have greater inertia.

Front

True or False: Objects with greater mass have less inertia.

Back

False

Front

If Object B has a greater mass than Object A, which object will have a greater change in velocity when the same force is applied?

Back

Object A will have a greater change in velocity.

Front

What are balanced forces?

Back

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

Front

What are unbalanced forces?

Back

Unbalanced forces are forces that are not equal and opposite, causing a change in the motion of an object.

Front

If a tennis ball and a basketball collide, and the force on the tennis ball is 300 to the left, what is the force on the basketball?

Back

The force on the basketball is 300 to the right.

Front

How do you calculate speed?

Back

Speed is calculated by dividing the distance traveled by the time taken (Speed = Distance / Time).

Front

What is the speed of a plane that travels 395,000 meters in 9000 seconds?

Back

The speed is 43.9 m/s.

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by a net external force.

Front

What is the relationship between mass and acceleration when a constant force is applied?

Back

As mass increases, acceleration decreases when the same force is applied (F = ma).