7th grade motion lesson

Front

What is Newton's THIRD law?

Back

To every action, there is always opposed an equal reaction; or, the mutual actions of two bodies upon each other are always equal, and directed to contrary parts.

Front

What does gravity refer to?

Back

An invisible force that pulls everything towards the ground, like an invisible hand.

Front

Can we change the motion by changing the wheels on the axle to match each other to roll down the ramp straight?

Back

True

Front

Is a wheel a rod or shaft to which objects can be attached?

Back

False

Front

What is the definition of motion?

Back

Motion is the change in position of an object over time.

Front

What is the formula for calculating speed?

Back

Speed = Distance / Time.

Front

What is inertia?

Back

Inertia is the tendency of an object to resist changes in its state of motion.

Front

What is the effect of an unbalanced force on an object?

Back

An unbalanced force causes an object to accelerate in the direction of the net force.

Front

What is the relationship between mass and acceleration according to Newton's second law?

Back

The acceleration of an object is inversely proportional to its mass when a net force is applied.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.