Forces OCR KS4 Y9

What is the formula for force?

• Force = mass × acceleration

• Force = mass ÷ acceleration

• Force = weight × height

• Force = distance ÷ time

What is the unit of force?

• Newton

• Joule

• Watt

• Pascal

Which instrument measures force?

• Newton meter

• Thermometer

• Voltmeter

• Ammeter

What is the weight of a 10 kg object on Earth? (g = 10 N/kg)

• 100 N

• 10 N

• 1000 N

• 1 N

What is the difference between mass and weight?

• Mass is the amount of matter; weight is the force due to gravity

• Mass and weight are the same

• Weight is measured in kg

• Mass changes with location

What is the unit of pressure?

• Pascal

• Newton

• Joule

• Watt

What is pressure?

• Force per unit area

• Mass per unit volume

• Distance per unit time

• Energy per unit charge

What is the pressure if a 200 N force is applied to an area of 2 m²?

• 100 Pa

• 400 Pa

• 200 Pa

• 50 Pa

Why do snowshoes stop you from sinking in snow?

• They spread your weight over a larger area

• They make you heavier

• They grip the snow

• They melt the snow

What does a resultant force cause?

• A change in motion

• An increase in mass

• A temperature rise

• Nothing at all