Mechanics Quiz - GCSE into A-level. Don't randomize

Figure 1 shows the velocity-time graph for a car driven along a straight road.

From B to C the car is...

• accelerating.

• Stationary.

• travelling at a constant speed.

• decelerating.

During B to C the driving force is ............... the backwards resistive force (drag).

• equal to

• greater than

• less than

• exactly double

Which word best describes the motion of the car from C to D?

• Positive acceleration

• Constant Speed

• Stationary

• Deceleration

• Stopped

Calculate the acceleration of the car from A to B. (just give the number with no units and 0 d.p)

What are the units for acceleration?

• m/s

• m s^-1

• kg m / s^-1

• m/s^2

Figure 2 shows how the stopping distance of a car depends on the speed of the car.

What best describes what happens to the stopping distance of the car when the speed of the car doubles.

• increases.

• increases by double.

• increases exponentially.

• is directly proportional.

Figure 1 shows an aircraft flying at a constant velocity and at a constant height above the ground.

Figure 2 shows the lift (15,000 N) and drag (25,000 N) force on the aircraft. What is the resultant force (value only) of these two forces?

(write just the value to 2 significant figures).

A small aircraft accelerated down a runway at 4.0 m/s²

The aircraft started from rest and reached a speed of 34 m/s just before take-off.

Calculate the distance the aircraft travelled while accelerating.

Give your answer to 2 significant figures.

The tension force in the cable can be resolved into a horizontal component and a vertical component.

The tension in the cable is 2000 N

The cable makes an angle of 20° with the horizontal.

Calculate the Magnitude of the horizontal component if the tension force in Newtons (to 2 sig fig).

The tension force in the cable can be resolved into a horizontal component and a vertical component.

The tension in the cable is 2000 N

The cable makes an angle of 20° with the horizontal.

Calculate the Magnitude of the vertical component if the tension force in Newtons (to 2 sig fig).