MIDTERM EXAM 2024

Front

What is the best experimental design to evaluate the effectiveness of materials in reducing impact force?

Back

Drop identical objects onto foam, plastic, and metal surfaces and measure the time of deceleration using sensors.

Front

What is the relationship between net force and acceleration?

Back

They are directly proportional.

Front

Where is the increase in kinetic energy most apparent in a roller coaster ride?

Back

At the bottom of a steep drop.

Front

What happens to Emma's team in a tug-of-war if Lily's team lets go of the rope?

Back

They will fall backwards.

Front

What demonstrates Newton's Third Law in a car crash scenario?

Back

The equal and opposite forces between the car and the object it strikes.

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 unless acted upon by a net external force.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

What is potential energy?

Back

The energy stored in an object due to its position or configuration.

Front

What is the formula for calculating kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the principle of conservation of energy?

Back

Energy cannot be created or destroyed, only transformed from one form to another.