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Inertia OALH

Last updated almost 5 years ago
26 questions
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1

State the equation which links force, mass, and acceleration.

1

State the relationship between the mass of an object and its acceleration at a constant force.

1

Define resultant force.

1

State the independent, dependent, and one reasonable control variable in an experiment to investigate how the height a ball is dropped from affects its final velocity.

1

Calculate the weight of an object on Earth that has a mass of 30kg.

1

Explain which a diagram why an object moving in a circle at a constant speed is accelerating.

Key Knowledge
1

Define inertia.

1

Define ‘state of motion.’

1

What is inertial mass a measure of?

1

Define inertial mass.

1

Give the equation for inertial mass.

1

Define inertia.

1

Define ‘state of motion.’

1

What is inertial mass a measure of?

1

Define inertial mass.

1

Give the equation for inertial mass.

Recall Quiz
1

1.Which of the following is requires the most force to accelerate at a rate of 10 m/s2

1

2. The ratio of force over acceleration is the ...?

1

3. What are the units for mass?

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4. A force of 50 newtons is exerted on four objects. Which has the smallest mass, if the acceleration of each object is as follows.

Application Task
1

Explain why the person on the bike continues moving forwards.

Inertia is the…
The resultant force is applied to the… but not the…
Therefore….

Key words to include:
inertia tendency resultant force
state of motion inertial mass

1

Explain why the coin falls in the glass.

1

A resultant force of 220 N was required to decelerate a motorcyclist at a rate of 0.5m/s2. Calculate the inertial mass

1

1. Answer the question “Explain, in terms of inertia, why it is important for passengers to wear seatbelt.” (4 marks)

1

2. When the car applied their emergency brakes, the passenger decelerated at 0.25m/s2. The seatbelt applied a resultant force of 330 N. Calculate the inertial mass of the passenger. You must show all of your working. (3 marks)

Plenary
1

1.Give the units for inertial mass.
2.State which of the following would accelerate the most easily: a feather, a golf ball, a bowling ball,
3.Which of the above has the greatest inertia?
4.Give the units for force.
5.Give the units for mass.