Force & Motion Final Flashcards

Front

Force

Back

An interaction between objects.

Answer explanation

The scientific definition of force is an interaction between objects that can cause a change in motion. It is not a type of energy, a measure of speed, or a form of matter, making 'an interaction between objects' the correct choice.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

Force has both magnitude and ______.

Back

direction

Answer explanation

Force is a vector quantity, meaning it has both magnitude and direction. The correct answer is 'direction', as it specifies where the force is applied, unlike the other options which do not pertain to the characteristics of force.

Tags

NGSS.MS-PS2-1

Front

Force

Back

A push or pull on an object.

Answer explanation

The correct definition of force is A) A push or pull on an object. This describes how force interacts with objects, unlike the other options which refer to unrelated properties such as speed, color, or temperature.

Tags

NGSS.MS-PS2-1

Front

Fill in the blank: When two objects interact, they can either repel or attract each other.

Back

repel

Answer explanation

When two objects interact, they can either repel or attract each other due to forces like magnetism or gravity. The correct choice is 'repel', as it directly contrasts with attraction.

Tags

NGSS.MS-PS2-4

Front

What is force?

Back

A push or a pull.

Answer explanation

Force is defined as a push or a pull acting on an object. This makes option A the correct choice, as it accurately describes the fundamental concept of force in physics.

Tags

NGSS.MS-PS2-1

Front

All forces have magnitude or strength, direction, and are measured in _______.

Back

Newtons

Answer explanation

All forces are measured in Newtons, which quantify both the strength and direction of the force. Joules measure energy, meters measure distance, and kilograms measure mass, making Newtons the correct choice.

Front

Which of the following is a type of contact force? Gravity, Magnetic force, Friction, Electric force

Back

Friction

Answer explanation

Friction is a type of contact force that occurs when two surfaces interact. Unlike gravity, magnetic, and electric forces, which can act at a distance, friction requires direct contact between objects.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

Gravity is a force of attraction between two objects. It is most noticeable with very large objects like the Sun, the Earth, and the ____.

Back

the Moon

Answer explanation

The Moon is a large object that is significantly affected by Earth's gravity, making it a prime example of gravitational attraction. Unlike Mars, Jupiter, or Venus, the Moon's proximity to Earth highlights this force.

Tags

NGSS.MS-PS2-4

NGSS.MS-ESS1-2

Front

Which of the following is a contact force? Gravity, Magnetic Force, Friction, Electric Force

Back

Friction

Answer explanation

Friction is a contact force because it arises from the interaction between surfaces in contact. In contrast, gravity, magnetic force, and electric force are non-contact forces, acting at a distance without direct physical contact.

Tags

NGSS.MS-PS2-2

Front

Fill in the blank: _______ is a non-contact force that acts between two objects without them touching.

Back

Gravity

Answer explanation

Gravity is a non-contact force that attracts two objects towards each other without them needing to touch. Unlike friction or applied force, which require contact, gravity acts at a distance, making it the correct choice.

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5