**Table of Contents**show

## What kind of motion does a toy vehicle exhibit?

The wheels of a moving car exhibit rotation as well as translational motion. It not only rotates around its axis but also translates in a straight line and move forward.

## What is the best way to measure the length of a motion cart in the lab?

- Use a meter stick or metric tape to measure each position of the cart (measured from the start).
- Plot each position/time data pair on your position vs.
- Calculate and record the displacement (ending position – starting position) of the cart during each time interval.

## What type of graph best illustrates constant velocity?

A horizontal line = constant velocity.

## What physical quantity is represented by the slope of the line?

The slope is representing the change in v over the change in time. By definition, this is the acceleration.

## How did gravity influence the motion of the toy car?

The greater the force, the greater the damage. The forces acting on the toy car in the experiment include: Gravitational force –pulls objects towards the centre of the earth. This causes the car to roll down the ramp.

## What action makes a toy car move?

A friction motor is a simple mechanism to propel toy cars, trucks, trains, action figures and similar toys. The motor consists of a large flywheel which is connected to the drive wheels of the toy via a very low gear ratio, so that the flywheel revolves faster.

## How could you increase the speed of a toy car?

Make toy cars move faster by lowering their weight while increasing traction and decreasing internal friction. Toy cars are controlled by the same physics as their full-sized counterparts. Minor modifications and repairs to a toy car can have a major influence on the car’s performance.

## How do you walk to create a U shaped graph?

To create a U-shaped graph by walk, the initial position is marked from the detector. The walk is started in a straight line. Then, walk away and reduce the speed. Continue the same pace for some time.

## How do we measure the speed of a moving body?

The equation for speed is simple: distance divided by time. You take the distance traveled (for example 3 meters), and divide it by the time (three seconds) to get the speed (one meter per second).

## What is the formula for finding the speed of an object?

The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you need to know the units for distance and time. In this example, distance is in metres (m) and time is in seconds (s), so the units will be in metres per second (m/s).

## Can velocity be negative?

Velocity: The velocity of an object is the change in position (displacement) over a time interval. Velocity includes both speed and direction, thus velocity can be either positive or negative while speed can only be positive.

## Which velocity time graph is not possible?

Solution: (d) Particle cannot possess two velocities at a single instant so graph (d) is not possible.

## How do you calculate acceleration from a velocity time graph?

The area under the acceleration graph represents the change in velocity. In other words, the area under the graph for a certain time interval is equal to the change in velocity during that time interval.

## Does slope represent velocity?

What does the slope represent on a velocity graph? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant.

## Is the slope the density?

Density is mass/volume or is the rise over run or y/x. The slope represents density.

## Which physical quantity is measured by slope of distance-time graph?

Velocity: We get velocity from the slope of the distance-time graph. Velocity is the speed in a particular direction, and it is typically measured in meters per second ( m / s o r m s – 1 ).

## Why do you think the toy car run faster on shiny floor?

Lesser the frictional force, farther the car will travel. Hence, polished surface provides the least frictional force.

## Why does a toy car go faster down a ramp?

When a car is on a ramp, a component or part of the force of gravity acts parallel to the ramp, causing the car to speed up, or accelerate down the ramp.

## What causes the toy cars to move slowly or fast in the different surfaces?

Friction is a force that is created when two surfaces rub together. The rougher the surface, the more friction is produced. Friction makes it more difficult for things to move and always slows a moving object. Frictional forces can be helpful.

## How does friction affect the speed of a toy car?

The frictional forces act in the opposite direction to movement making it harder to move, therefore making the car slower and pick up less speed moving down the ramp so travelling less distance.

## How do you make a toy car move without electricity?

Put a magnet at the bottom of the tabletop so that the pole of the magnet in the car and the pole in the magnet under the tabletop are opposite poles. If the magnetic poles are not opposite each other, the car will jump away from the magnet in a random direction.

## What is the final speed of the toy car?

A 100-gram toy car is propelled by a compressed spring that starts it moving. The car follows a curved track. Show that the final speed of the toy car is 0.687m/s 0.687 m / s if its initial speed is 2.00m/s 2.00 m / s and it coasts up the frictionless slope, gaining 0.180m in altitude.

## Does a heavier object go down a ramp faster?

Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.

## Does a heavier car roll down a hill faster?

Many people expect that a heavier wheel will naturally roll downhill faster than a lighter one. But when an object rolls downhill, its speed depends not on the weight of the wheel, but on where the weight is located. When weight is located far from the center of the wheel, the wheel is harder to get rolling.