The video explains acceleration as the rate at which an object changes its speed, influenced by the magnitude of speed change and the time taken. It covers how acceleration is measured, using meters per second squared, and illustrates this with velocity-time graphs. The video also discusses constant and variable acceleration, providing real-world examples like vehicles and sports. It concludes with common acceleration values and comparisons between different vehicles.

What happens to your body when a car accelerates?

• It is pushed back into the seat.

• It moves sideways.

• It moves forward.

• It stays still.

Tags

NGSS.MS-PS2-2

What does 'decelerate' mean?

• To speed up.

• To slow down.

• To stop completely.

• To maintain speed.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following affects acceleration?

• The color of the car.

• The change in speed.

• The weight of the driver.

• The type of fuel used.

Tags

NGSS.MS-PS2-2

How is acceleration measured?

• Meters per second squared.

• Miles per hour.

• Feet per second.

• Kilometers per hour.

What does a steeper line on a velocity-time graph indicate?

• Deceleration.

• Slower acceleration.

• Faster acceleration.

• Constant speed.

What does constant acceleration look like on a graph?

• A curved line.

• A horizontal line.

• A straight line.

• A vertical line.

Which of the following is an example of acceleration in the real world?

• A book on a table.

• A diver jumping off a cliff.

• A car parked in a garage.

• A person sitting on a chair.

Tags

NGSS.MS-PS2-2

What is the acceleration of a common hatchback car that reaches 100 km/h in 6.7 seconds?

• 4.15 meters per second squared.

• 3.15 meters per second squared.

• 6.15 meters per second squared.

• 5.15 meters per second squared.

Tags

NGSS.MS-PS2-2

Which vehicle has the fastest acceleration?

• A space shuttle.

• A common hatchback car.

• A roller coaster.

• A Formula One car.

What are the two factors that affect acceleration?

• Time and distance.

• Weight and speed.

• Change in speed and time taken.

• Speed and distance.

Tags

NGSS.MS-PS2-2