Newton's Laws of Motion

Front

Newton's 1st Law of Motion

Back

Newton's 1st Law of Motion

Front

F=ma

Back

Newton's 2nd Law of Motion

Answer explanation

The equation F=ma represents Newton's 2nd Law of Motion, which states that force (F) is equal to mass (m) multiplied by acceleration (a). This law describes how the velocity of an object changes when it is subjected to an external force.

Front

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

Back

Newton's 3rd Law of Motion

Answer explanation

The statement "For every action, there is an equal and opposite reaction" describes Newton's 3rd Law of Motion, which states that forces always occur in pairs, with equal magnitude and opposite direction.

Front

An automobile stops suddenly, but you continue forward.

Back

Newton's 1st Law of Motion

Answer explanation

According to Newton's 1st Law of Motion, an object in motion stays in motion unless acted upon by an external force. When the automobile stops, your body continues moving forward due to inertia.

Front

Force on a car doubled leads to doubled acceleration.

Back

Newton's 2nd Law of Motion

Answer explanation

Newton's 2nd Law of Motion states that force equals mass times acceleration (F=ma). If the force is doubled, the acceleration must also double, assuming mass remains constant.

Front

A magician pulls a tablecloth from under dishes.

Back

Newton's 1st Law of Motion

Answer explanation

The magician's action demonstrates Newton's 1st Law of Motion, which states that an object at rest stays at rest unless acted upon by an external force. The quick pull of the cloth exerts a force, allowing the dishes to remain in place.

Front

A skater pushes another skater forward, moving backwards themselves.

Back

Newton's 3rd Law of Motion

Answer explanation

This scenario illustrates Newton's 3rd Law of Motion, which states that for every action, there is an equal and opposite reaction. The skater pushing forward exerts a force, causing the other skater to move while the pusher moves backward.

Front

The harder you hit a baseball, the faster it accelerates.

Back

Newton's 2nd Law of Motion

Answer explanation

Newton's 2nd Law of Motion states that force equals mass times acceleration (F=ma). Hitting a baseball harder increases the force applied, resulting in greater acceleration of the ball.

Front

Pushing against a wall results in the wall pushing back.

Back

Newton's 3rd Law of Motion

Answer explanation

This scenario illustrates Newton's 3rd Law of Motion, which states that for every action, there is an equal and opposite reaction. When you push against the wall, it pushes back with equal force.

Front

Rocket fuel ignites, gas expansion pushes rocket forward.

Back

Newton's 3rd Law of Motion

Answer explanation

The rocket's propulsion is explained by Newton's 3rd Law of Motion, which states that for every action, there is an equal and opposite reaction. The gas expansion pushes backward, propelling the rocket forward.