Untitled Presentation

Multiple Choice

Which of the following best describes Newton's First Law of Motion?

• An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

• For every action, there is an equal and opposite reaction.

• Force equals mass times acceleration.

• Energy cannot be created or destroyed.

Open Ended

What is the significance of Newton's First Law of Motion in understanding how objects move and interact in our daily lives?

Multiple Choice

Which of the following best describes the concept of inertia as demonstrated by the car stopping and the blocks being struck in the images?

• Objects in motion tend to stop immediately when force is applied.

• Objects at rest tend to move when force is applied.

• Objects in motion tend to continue moving in the same direction unless acted upon by an external force.

• Objects at rest tend to remain at rest even when force is applied.

Multiple Choice

What happens to the ball on the cart when the cart is suddenly pushed forward, and what happens to the books on the chair when the chair is suddenly stopped?

• The ball moves forward and the books move backward.

• The ball moves backward and the books move forward.

• Both the ball and the books move forward.

• Both the ball and the books move backward.

Open Ended

Explain how inertia affects the motion of passengers in a bus when it starts moving and when it suddenly stops, as shown in the images.

Fill in the Blanks

Fill in the blank: When a hammer head becomes loose, it can be tightened by

it quickly on the ground.

Multiple Select

Which of the following are examples of inertia in motion?

• A parked car remaining still until pushed

• A runner continuing to move forward after crossing the finish line

• A cup of water staying still on a table

• A ball rolling on a flat surface until friction stops it

Multiple Choice

If an object is moving at a constant speed of 3 m/s and no external force acts on it, what will its speed be after 10 seconds?

• 1 m/s

• 2 m/s

• 3 m/s

• 4 m/s

Multiple Select

(1) 哪種情形會呈現如甲圖？ (2) 哪種情形會呈現如乙圖？ (3) 哪種情形會呈現如丙圖？

• A: 向左等速度運動

• B: 向右等速度運動

• C: 由靜止突然向左運動

• D: 由靜止突然向右運動

• E: 原向右運動突然減速

Open Ended

Describe how the concept of inertia is demonstrated in the toy car and clay snowman experiment.

Multiple Choice

根據圖示，小球從A點滑下後，在哪一個斜面（B、C、D）爬升的高度最高？

• A. B

• B. C

• C. D

• D. 三者相等

Open Ended

Explain how Newton's first law of motion applies to the scenarios described in the images, particularly focusing on the behavior of objects in motion and at rest.

Multiple Choice

當火車以等速度前進時，垂直上拋一銅幣，銅幣會落在火車原座位的哪個位置？

• A. 原處

• B. 前

• C. 後

• D. 左

• E. 右

Fill in the Blanks

Fill in the blank: The direction of the net force on a car moving at a constant speed on a straight, rough road is

.

Multiple Choice

What causes an object to accelerate according to the first image?

• External force

• Internal energy

• Friction

• Gravity

Fill in the Blanks

Fill in the blank: The direction of the external force and the direction of acceleration are

.

Multiple Choice

How are the directions of force and acceleration related?

• They are always opposite

• They are always the same

• They are unrelated

• They are perpendicular

Multiple Select

Which of the following factors affect the magnitude of acceleration?

• The magnitude of the external force

• The mass of the object

• The direction of motion

• Both the magnitude of the external force and the mass of the object

Multiple Choice

What is the mathematical relationship between force, mass, and acceleration?

• F = m × a

• F = m / a

• F = a / m

• F = m + a

Open Ended

Explain how the magnitude of force and acceleration are related for objects of the same mass.

Open Ended

What is Newton's First Law of Motion and how does it relate to everyday experiences?