Inertial

Identify what type of reference frame.

"A 10 - wheeler truck parked near the house".

• Inertial Frame of Reference

• Non - Inertial Frame of Reference

Which of the following is an example of an inertial frame of reference?

• A car moving at a constant speed on a straight road

• A car accelerating on a highway

• A spinning merry-go-round

• A satellite orbiting Earth

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NGSS.HS-PS2-2

What is the principle of inertia?

• An object at rest stays at rest unless acted upon by an external force

• An object in motion stays in motion unless acted upon by an external force

• Both A and B

• None of the above

In which of the following scenarios is Newton's first law of motion applicable?

• A book lying on a table

• A car accelerating from a stoplight

• A ball thrown upwards

• A satellite changing its orbit

What is the effect of inertia on a passenger in a car that suddenly stops?

• The passenger moves forward

• The passenger moves backward

• The passenger remains stationary

• The passenger moves sideways

Which of the following best describes an inertial frame of reference?

• A frame where Newton's laws of motion are valid

• A frame where objects are always at rest

• A frame where objects are always in motion

• A frame where gravitational forces are absent

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

How does inertia affect the motion of a spacecraft in space?

• It keeps the spacecraft moving at a constant velocity

• It causes the spacecraft to accelerate

• It causes the spacecraft to decelerate

• It has no effect on the spacecraft

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NGSS.HS-PS2-1

NGSS.HS-PS2-2

What happens to an object in an inertial frame of reference when no external forces act on it?

• It remains at rest or moves at a constant velocity

• It accelerates

• It changes direction

• It comes to a stop

Which of the following is NOT an inertial frame of reference?

• A car moving at a constant speed

• A rotating carousel

• A stationary train

• A plane flying at a constant altitude

Why is Earth considered an approximately inertial frame of reference for most everyday activities?

• Because its rotation and revolution effects are negligible

• Because it is stationary in space

• Because it has no gravitational forces

• Because it is perfectly spherical

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