Flashcard 5 - Matter & Energy

Front

Kyndall was riding her bicycle and noticed that whenever she pedaled faster or slower, there was a change in her bicycle's _______? Options: speed, acceleration, inertia, momentum

Back

acceleration

Front

What is the SI unit of force?

Back

newton

Front

The space relative to which Kyndall measures a car's motion is called a(n) _______? Options: vector, frame of reference, axis, coordinate

Back

frame of reference

Front

What type of diagram represents the forces acting on an object without considering their causes or reaction forces?

Back

free-body

Front

Which law mathematically relates the force applied to an object and its acceleration?

Back

second law of motion

Front

Which law is also called the law of inertia?

Back

first law of motion

Front

When Connor pushes against a wall, which law explains why the wall pushes back with an equal and opposite force?

Back

third law of motion

Front

When Connor pushes a stationary car, which law explains why the car starts moving?

Back

first law of motion

Front

Force required to accelerate a 2.5 kg cart at 3.0 m/s²?

Back

7.5 N

Front

Kyndall is pushing a 50. kg box to the right with a force of 185 N. A frictional force of 175 N pushes the box left, giving a net force of 10. N. What is the box's magnitude of acceleration?

Back

0.20 m/s²