Balanced & Unbalanced Forces

Question 1

When the forces acting on a moving toy car are balanced, what will happen to the car’s motion?

Accepted Answer

It will keep moving at the same speed.

Answer

It will slow down and stop.

Answer

It will change direction.

Answer

It will speed up.

Question 2

Sam places a small toy car on a flat table. He pushes the car gently from the left with a force of 2 N. At the same time, he pushes the car from the right with a force of 2 N in the opposite direction. What will happen to the car's motion?

Accepted Answer

The car will stay at rest because the forces are balanced.

Answer

The car will move to the right because the pushes cancel and the car goes in the direction of the larger force.

Answer

The car will speed up in the direction of the pushes because any push makes it move faster.

Answer

The car will move to the left because the left push was applied first.

Question 3

Sam conducts two tests with a toy car on a smooth table. Test 1: Sam pushes the car gently from the left while his friend pushes with the same amount of force from the right at the same time. Test 2: Sam pushes the car from the left with a stronger push and no one pushes from the right. Which statement correctly describes what will happen in each test?

Accepted Answer

In Test 1 the car stays still, and in Test 2 the car moves forward.

Answer

In both tests the car stays still.

Answer

In Test 1 the car moves forward, and in Test 2 the car stays still.

Answer

In both tests the car moves forward.

Try three questions

When the forces acting on a moving toy car are balanced, what will happen to the car’s motion?

Sam places a small toy car on a flat table. He pushes the car gently from the left with a force of 2 N. At the same time, he pushes the car from the right with a force of 2 N in the opposite direction. What will happen to the car's motion?

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