Double Check 3°

What is speed?

• Speed is the ability of an object to float in water

• Speed is the amount of food consumed by an animal in a day

• Speed is the distance between two points on a map

• Speed is the relationship between the distance traveled by an object and the time it takes to travel it.

What is the function of a simple machine?

• Increase the speed of an object

• Reduce the friction between two objects

• Multiply or change the direction of the force applied to an object.

• Divide the force applied to an object

How is the distance traveled by an object measured?

• Using a measuring instrument, such as a ruler, tape measure, or a GPS device.

• Counting the steps taken by the object

• Asking other people how far they think the object has traveled

• Staring at the object and guessing the distance

What unit of measurement is used for time?

• liter

• meter

• second

• gram

What is the difference between speed and acceleration?

• What is the difference between speed and acceleration?

• Speed is the rate at which an object moves, while acceleration is the rate at which the direction of an object changes.

• Speed refers to the change in an object's position over a time interval, while acceleration refers to the change in an object's velocity over a time interval.

• Speed is measured in meters per second squared, while acceleration is measured in meters per second.

Which of the following is the most commonly used simple machine?

• Screw

• Wheel

• Cylinder

• Lever

How is the speed of a moving object calculated?

• Speed = Distance / Time

• Speed = Distance + Time

• Speed = Distance x Time

• Speed = Time / Distance

What is the importance of simple machines in daily life?

• The simple machines are irrelevant in daily life

• The simple machines increase the effort needed to perform tasks

• The simple machines are only used in extreme situations

• The simple machines are important in daily life because they help us perform tasks more efficiently and with less effort.

What is the definition of velocity?

• Velocity is the speed of an object in a specific direction.

• Velocity is the distance traveled by an object in a given time period.

• Velocity is the force applied to an object to make it move.

• Velocity is the weight of an object.

What is the relationship between force and motion?

• Force is not related to motion

• Force is the cause of motion

• Force is the result of motion

• Force has no impact on motion